12210203231031 has 16 divisors (see below), whose sum is σ = 17536359712256. Its totient is φ = 7512359704416.

The previous prime is 12210203230963. The next prime is 12210203231053. The reversal of 12210203231031 is 13013230201221.

It is not a de Polignac number, because 12210203231031 - 2¹⁹ = 12210202706743 is a prime.

It is a super-2 number, since 2×12210203231031² (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 = 12210203230989 and 12210203231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210203231071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33389035 + ... + 33752748.

It is an arithmetic number, because the mean of its divisors is an integer number (1096022482016).

Almost surely, 2^{12210203231031} is an apocalyptic number.

12210203231031 is a deficient number, since it is larger than the sum of its proper divisors (5326156481225).

12210203231031 is a wasteful number, since it uses less digits than its factorization.

12210203231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67146462.

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

Adding to 12210203231031 its reverse (13013230201221), we get a palindrome (25223433432252).

The spelling of 12210203231031 in words is "twelve trillion, two hundred ten billion, two hundred three million, two hundred thirty-one thousand, thirty-one".