123100032311 has 16 divisors (see below), whose sum is σ = 130640793600. Its totient is φ = 115666040448.

The previous prime is 123100032287. The next prime is 123100032313. The reversal of 123100032311 is 113230001321.

It is not a de Polignac number, because 123100032311 - 2²² = 123095838007 is a prime.

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 123100032311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100032313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10304780 + ... + 10316718.

It is an arithmetic number, because the mean of its divisors is an integer number (8165049600).

Almost surely, 2^123100032311 is an apocalyptic number.

123100032311 is a deficient number, since it is larger than the sum of its proper divisors (7540761289).

123100032311 is a wasteful number, since it uses less digits than its factorization.

123100032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16358.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123100032311 its reverse (113230001321), we get a palindrome (236330033632).

The spelling of 123100032311 in words is "one hundred twenty-three billion, one hundred million, thirty-two thousand, three hundred eleven".