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123311213113 = 1129386555527
BaseRepresentation
bin111001011010111101…
…0111100101000111001
3102210021202210122222011
41302311322330220321
54010020132304423
6132352015125521
711623524005644
oct1626572745071
9383252718864
10123311213113
1148328a68590
121ba948138a1
13b8221c447a
145d7b000a5b
15331aa20b0d
hex1cb5ebca39

123311213113 has 8 divisors (see below), whose sum is σ = 139159990080. Its totient is φ = 108235547280.

The previous prime is 123311213087. The next prime is 123311213147. The reversal of 123311213113 is 311312113321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123311213113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123311213213) 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, 193277445 + ... + 193278082.

It is an arithmetic number, because the mean of its divisors is an integer number (17394998760).

Almost surely, 2123311213113 is an apocalyptic number.

It is an amenable number.

123311213113 is a deficient number, since it is larger than the sum of its proper divisors (15848776967).

123311213113 is a wasteful number, since it uses less digits than its factorization.

123311213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386555567.

The product of its digits is 324, while the sum is 22.

Adding to 123311213113 its reverse (311312113321), we get a palindrome (434623326434).

The spelling of 123311213113 in words is "one hundred twenty-three billion, three hundred eleven million, two hundred thirteen thousand, one hundred thirteen".

Divisors: 1 11 29 319 386555527 4252110797 11210110283 123311213113