123113010311 has 16 divisors (see below), whose sum is σ = 132840082944. Its totient is φ = 113662907904.

The previous prime is 123113010287. The next prime is 123113010329. The reversal of 123113010311 is 113010311321.

It is not a de Polignac number, because 123113010311 - 2³⁰ = 122039268487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123113010311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113010341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6390185 + ... + 6409421.

It is an arithmetic number, because the mean of its divisors is an integer number (8302505184).

Almost surely, 2^123113010311 is an apocalyptic number.

123113010311 is a deficient number, since it is larger than the sum of its proper divisors (9727072633).

123113010311 is a wasteful number, since it uses less digits than its factorization.

123113010311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26410.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 123113010311 its reverse (113010311321), we get a palindrome (236123321632).

The spelling of 123113010311 in words is "one hundred twenty-three billion, one hundred thirteen million, ten thousand, three hundred eleven".