123311132132111 has 16 divisors (see below), whose sum is σ = 153799537751808. Its totient is φ = 96048481838400.

The previous prime is 123311132132033. The next prime is 123311132132159. The reversal of 123311132132111 is 111231231113321.

It is not a de Polignac number, because 123311132132111 - 2³⁸ = 123036254225167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311135132111) 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, 317426525 + ... + 317814758.

It is an arithmetic number, because the mean of its divisors is an integer number (9612471109488).

Almost surely, 2^{123311132132111} is an apocalyptic number.

123311132132111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123311132132111 is a deficient number, since it is larger than the sum of its proper divisors (30488405619697).

123311132132111 is a wasteful number, since it uses less digits than its factorization.

123311132132111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635243822.

The product of its digits is 648, while the sum is 26.

Adding to 123311132132111 its reverse (111231231113321), we get a palindrome (234542363245432).

The spelling of 123311132132111 in words is "one hundred twenty-three trillion, three hundred eleven billion, one hundred thirty-two million, one hundred thirty-two thousand, one hundred eleven".