123132331311 has 32 divisors (see below), whose sum is σ = 185310961920. Its totient is φ = 72039340800.

The previous prime is 123132331303. The next prime is 123132331351. The reversal of 123132331311 is 113133231321.

It is not a de Polignac number, because 123132331311 - 2³ = 123132331303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132331351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8693011 + ... + 8707163.

It is an arithmetic number, because the mean of its divisors is an integer number (5790967560).

Almost surely, 2^123132331311 is an apocalyptic number.

123132331311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123132331311 is a deficient number, since it is larger than the sum of its proper divisors (62178630609).

123132331311 is a wasteful number, since it uses less digits than its factorization.

123132331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23287.

The product of its digits is 972, while the sum is 24.

Adding to 123132331311 its reverse (113133231321), we get a palindrome (236265562632).

The spelling of 123132331311 in words is "one hundred twenty-three billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred eleven".