12213123230031 has 32 divisors (see below), whose sum is σ = 16702443511488. Its totient is φ = 7933448540160.

The previous prime is 12213123230003. The next prime is 12213123230039. The reversal of 12213123230031 is 13003232131221.

It is not a de Polignac number, because 12213123230031 - 2⁵ = 12213123229999 is a prime.

It is a super-2 number, since 2×12213123230031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12213123229983 and 12213123230010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213123230039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983891581 + ... + 983903993.

It is an arithmetic number, because the mean of its divisors is an integer number (521951359734).

Almost surely, 2^{12213123230031} is an apocalyptic number.

12213123230031 is a deficient number, since it is larger than the sum of its proper divisors (4489320281457).

12213123230031 is a wasteful number, since it uses less digits than its factorization.

12213123230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931.

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

Adding to 12213123230031 its reverse (13003232131221), we get a palindrome (25216355361252).

The spelling of 12213123230031 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, two hundred thirty thousand, thirty-one".