123112020112131 has 8 divisors (see below), whose sum is σ = 164645279667904. Its totient is φ = 81826720315560.

The previous prime is 123112020112127. The next prime is 123112020112243. The reversal of 123112020112131 is 131211020211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123112020112131 - 2² = 123112020112127 is a prime.

It is a super-2 number, since 2×123112020112131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123112020112098 and 123112020112107.

It is not an unprimeable number, because it can be changed into a prime (123112020122131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61989938641 + ... + 61989940626.

It is an arithmetic number, because the mean of its divisors is an integer number (20580659958488).

Almost surely, 2^{123112020112131} is an apocalyptic number.

123112020112131 is a deficient number, since it is larger than the sum of its proper divisors (41533259555773).

123112020112131 is a wasteful number, since it uses less digits than its factorization.

123112020112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123979879601.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 123112020112131 its reverse (131211020211321), we get a palindrome (254323040323452).

The spelling of 123112020112131 in words is "one hundred twenty-three trillion, one hundred twelve billion, twenty million, one hundred twelve thousand, one hundred thirty-one".