123043402000311 has 64 divisors (see below), whose sum is σ = 177888571660800. Its totient is φ = 75201927413760.

The previous prime is 123043402000307. The next prime is 123043402000319. The reversal of 123043402000311 is 113000204340321.

It is a happy number.

It is not a de Polignac number, because 123043402000311 - 2² = 123043402000307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123043402000319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11322659700 + ... + 11322670566.

It is an arithmetic number, because the mean of its divisors is an integer number (2779508932200).

Almost surely, 2^{123043402000311} is an apocalyptic number.

123043402000311 is a deficient number, since it is larger than the sum of its proper divisors (54845169660489).

123043402000311 is a wasteful number, since it uses less digits than its factorization.

123043402000311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14256.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123043402000311 its reverse (113000204340321), we get a palindrome (236043606340632).

The spelling of 123043402000311 in words is "one hundred twenty-three trillion, forty-three billion, four hundred two million, three hundred eleven", and thus it is an aban number.