1112100131231 has 4 divisors (see below), whose sum is σ = 1112275023600. Its totient is φ = 1111925238864.

The previous prime is 1112100131171. The next prime is 1112100131309. The reversal of 1112100131231 is 1321310012111.

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

It is a cyclic number.

It is not a de Polignac number, because 1112100131231 - 2³⁸ = 837222224287 is a prime.

It is a super-2 number, since 2×1112100131231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112100131431) 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, 87436646 + ... + 87449363.

It is an arithmetic number, because the mean of its divisors is an integer number (278068755900).

Almost surely, 2^{1112100131231} is an apocalyptic number.

1112100131231 is a deficient number, since it is larger than the sum of its proper divisors (174892369).

1112100131231 is an equidigital number, since it uses as much as digits as its factorization.

1112100131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174892368.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1112100131231 its reverse (1321310012111), we get a palindrome (2433410143342).

The spelling of 1112100131231 in words is "one trillion, one hundred twelve billion, one hundred million, one hundred thirty-one thousand, two hundred thirty-one".