123010021331 has 16 divisors (see below), whose sum is σ = 135181612800. Its totient is φ = 111413240928.

The previous prime is 123010021273. The next prime is 123010021333. The reversal of 123010021331 is 133120010321.

It is a cyclic number.

It is not a de Polignac number, because 123010021331 - 2¹⁰ = 123010020307 is a prime.

It is a super-2 number, since 2×123010021331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123010021333) 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, 816365 + ... + 955233.

It is an arithmetic number, because the mean of its divisors is an integer number (8448850800).

Almost surely, 2^123010021331 is an apocalyptic number.

123010021331 is a deficient number, since it is larger than the sum of its proper divisors (12171591469).

123010021331 is a wasteful number, since it uses less digits than its factorization.

123010021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140938.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123010021331 its reverse (133120010321), we get a palindrome (256130031652).

The spelling of 123010021331 in words is "one hundred twenty-three billion, ten million, twenty-one thousand, three hundred thirty-one".