123110231321245 has 32 divisors (see below), whose sum is σ = 168989184000000. Its totient is φ = 84342319315776.

The previous prime is 123110231321213. The next prime is 123110231321249. The reversal of 123110231321245 is 542123132011321.

It is a cyclic number.

It is not a de Polignac number, because 123110231321245 - 2⁵ = 123110231321213 is a prime.

It is a super-2 number, since 2×123110231321245² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123110231321249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264521256 + ... + 264986254.

It is an arithmetic number, because the mean of its divisors is an integer number (5280912000000).

Almost surely, 2^{123110231321245} is an apocalyptic number.

It is an amenable number.

123110231321245 is a deficient number, since it is larger than the sum of its proper divisors (45878952678755).

123110231321245 is a wasteful number, since it uses less digits than its factorization.

123110231321245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471817.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 123110231321245 its reverse (542123132011321), we get a palindrome (665233363332566).

The spelling of 123110231321245 in words is "one hundred twenty-three trillion, one hundred ten billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred forty-five".