123210122331 has 16 divisors (see below), whose sum is σ = 167563362560. Its totient is φ = 80507999520.

The previous prime is 123210122281. The next prime is 123210122351. The reversal of 123210122331 is 133221012321.

It is not a de Polignac number, because 123210122331 - 2¹¹ = 123210120283 is a prime.

It is a super-2 number, since 2×123210122331² (a number of 23 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 = 123210122298 and 123210122307.

It is not an unprimeable number, because it can be changed into a prime (123210122351) 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, 1137751 + ... + 1241328.

It is an arithmetic number, because the mean of its divisors is an integer number (10472710160).

Almost surely, 2^123210122331 is an apocalyptic number.

123210122331 is a deficient number, since it is larger than the sum of its proper divisors (44353240229).

123210122331 is a wasteful number, since it uses less digits than its factorization.

123210122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379426.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123210122331 its reverse (133221012321), we get a palindrome (256431134652).

The spelling of 123210122331 in words is "one hundred twenty-three billion, two hundred ten million, one hundred twenty-two thousand, three hundred thirty-one".