12210231203031 has 4 divisors (see below), whose sum is σ = 16280308270712. Its totient is φ = 8140154135352.

The previous prime is 12210231203003. The next prime is 12210231203087. The reversal of 12210231203031 is 13030213201221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12210231203031 - 2⁵ = 12210231202999 is a prime.

It is a super-2 number, since 2×12210231203031² (a number of 27 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 = 12210231202989 and 12210231203007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210231203231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035038533836 + ... + 2035038533841.

It is an arithmetic number, because the mean of its divisors is an integer number (4070077067678).

Almost surely, 2^{12210231203031} is an apocalyptic number.

12210231203031 is a deficient number, since it is larger than the sum of its proper divisors (4070077067681).

12210231203031 is an equidigital number, since it uses as much as digits as its factorization.

12210231203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070077067680.

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

Adding to 12210231203031 its reverse (13030213201221), we get a palindrome (25240444404252).

The spelling of 12210231203031 in words is "twelve trillion, two hundred ten billion, two hundred thirty-one million, two hundred three thousand, thirty-one".