1012120113231 has 12 divisors (see below), whose sum is σ = 1462088930640. Its totient is φ = 674683208640.

The previous prime is 1012120113227. The next prime is 1012120113239. The reversal of 1012120113231 is 1323110212101.

It is not a de Polignac number, because 1012120113231 - 2² = 1012120113227 is a prime.

It is a super-2 number, since 2×1012120113231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012120113239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193466 + ... + 5384823.

It is an arithmetic number, because the mean of its divisors is an integer number (121840744220).

Almost surely, 2^{1012120113231} is an apocalyptic number.

1012120113231 is a deficient number, since it is larger than the sum of its proper divisors (449968817409).

1012120113231 is a wasteful number, since it uses less digits than its factorization.

1012120113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10588926 (or 10588923 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1012120113231 its reverse (1323110212101), we get a palindrome (2335230325332).

The spelling of 1012120113231 in words is "one trillion, twelve billion, one hundred twenty million, one hundred thirteen thousand, two hundred thirty-one".