102501421002457 has 2 divisors, whose sum is σ = 102501421002458. Its totient is φ = 102501421002456.

The previous prime is 102501421002391. The next prime is 102501421002467. The reversal of 102501421002457 is 754200124105201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98436241622016 + 4065179380441 = 9921504^2 + 2016229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102501421002457 is a prime.

It is not a weakly prime, because it can be changed into another prime (102501421002467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51250710501228 + 51250710501229.

It is an arithmetic number, because the mean of its divisors is an integer number (51250710501229).

Almost surely, 2^{102501421002457} is an apocalyptic number.

It is an amenable number.

102501421002457 is a deficient number, since it is larger than the sum of its proper divisors (1).

102501421002457 is an equidigital number, since it uses as much as digits as its factorization.

102501421002457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 102501421002457 its reverse (754200124105201), we get a palindrome (856701545107658).

The spelling of 102501421002457 in words is "one hundred two trillion, five hundred one billion, four hundred twenty-one million, two thousand, four hundred fifty-seven".