123210011301231 has 16 divisors (see below), whose sum is σ = 171492110924544. Its totient is φ = 78536854877184.

The previous prime is 123210011301187. The next prime is 123210011301253. The reversal of 123210011301231 is 132103110012321.

It is not a de Polignac number, because 123210011301231 - 2³¹ = 123207863817583 is a prime.

It is a super-2 number, since 2×123210011301231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123210011301198 and 123210011301207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123210011301281) 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, 361737426 + ... + 362077871.

It is an arithmetic number, because the mean of its divisors is an integer number (10718256932784).

Almost surely, 2^{123210011301231} is an apocalyptic number.

123210011301231 is a deficient number, since it is larger than the sum of its proper divisors (48282099623313).

123210011301231 is a wasteful number, since it uses less digits than its factorization.

123210011301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723817790.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 123210011301231 its reverse (132103110012321), we get a palindrome (255313121313552).

The spelling of 123210011301231 in words is "one hundred twenty-three trillion, two hundred ten billion, eleven million, three hundred one thousand, two hundred thirty-one".