123103020131311 has 16 divisors (see below), whose sum is σ = 134492184345600. Its totient is φ = 111746878621600.

The previous prime is 123103020131263. The next prime is 123103020131327. The reversal of 123103020131311 is 113131020301321.

It is a cyclic number.

It is not a de Polignac number, because 123103020131311 - 2⁷ = 123103020131183 is a prime.

It is a super-2 number, since 2×123103020131311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103020131381) 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, 95207001 + ... + 96491341.

It is an arithmetic number, because the mean of its divisors is an integer number (8405761521600).

Almost surely, 2^{123103020131311} is an apocalyptic number.

123103020131311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123103020131311 is a deficient number, since it is larger than the sum of its proper divisors (11389164214289).

123103020131311 is a wasteful number, since it uses less digits than its factorization.

123103020131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297190.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 123103020131311 its reverse (113131020301321), we get a palindrome (236234040432632).

The spelling of 123103020131311 in words is "one hundred twenty-three trillion, one hundred three billion, twenty million, one hundred thirty-one thousand, three hundred eleven".