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102102401011031 = 434750520732811
BaseRepresentation
bin10111001101110010010001…
…010101111100110101010111
3111101111220010212201201102222
4113031302101111330311113
5101340321204124323111
61001053110120452555
730335440451653061
oct2715622125746527
9441456125651388
10102102401011031
112a5954266261a3
12b55016761a15b
1344c82a476a925
141b2dad5566731
15bc0db76ac7db
hex5cdc9157cd57

102102401011031 has 8 divisors (see below), whose sum is σ = 106699787698944. Its totient is φ = 97606055788920.

The previous prime is 102102401011019. The next prime is 102102401011187. The reversal of 102102401011031 is 130110104201201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102102401011031 - 210 = 102102401010007 is a prime.

It is a super-2 number, since 2×1021024010110312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102401013031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25260364385 + ... + 25260368426.

It is an arithmetic number, because the mean of its divisors is an integer number (13337473462368).

Almost surely, 2102102401011031 is an apocalyptic number.

102102401011031 is a deficient number, since it is larger than the sum of its proper divisors (4597386687913).

102102401011031 is an equidigital number, since it uses as much as digits as its factorization.

102102401011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50520732901.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102102401011031 its reverse (130110104201201), we get a palindrome (232212505212232).

The spelling of 102102401011031 in words is "one hundred two trillion, one hundred two billion, four hundred one million, eleven thousand, thirty-one".

Divisors: 1 43 47 2021 50520732811 2172391510873 2374474442117 102102401011031