123012103032321 has 16 divisors (see below), whose sum is σ = 167831012659200. Its totient is φ = 80100643467600.

The previous prime is 123012103032283. The next prime is 123012103032331. The reversal of 123012103032321 is 123230301210321.

It is not a de Polignac number, because 123012103032321 - 2¹⁰ = 123012103031297 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 123012103032291 and 123012103032300.

It is not an unprimeable number, because it can be changed into a prime (123012103032331) 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, 43196280 + ... + 45955878.

It is an arithmetic number, because the mean of its divisors is an integer number (10489438291200).

Almost surely, 2^{123012103032321} is an apocalyptic number.

It is an amenable number.

123012103032321 is a deficient number, since it is larger than the sum of its proper divisors (44818909626879).

123012103032321 is a wasteful number, since it uses less digits than its factorization.

123012103032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105196.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123012103032321 its reverse (123230301210321), we get a palindrome (246242404242642).

The spelling of 123012103032321 in words is "one hundred twenty-three trillion, twelve billion, one hundred three million, thirty-two thousand, three hundred twenty-one".