10131323112 has 24 divisors (see below), whose sum is σ = 27439000290. Its totient is φ = 3377107680.

The previous prime is 10131323023. The next prime is 10131323123. The reversal of 10131323112 is 21132313101.

It can be written as a sum of positive squares in only one way, i.e., 10125591876 + 5731236 = 100626^2 + 2394^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70356339 + ... + 70356482.

Almost surely, 2^10131323112 is an apocalyptic number.

10131323112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10131323112 is an abundant number, since it is smaller than the sum of its proper divisors (17307677178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10131323112 is a wasteful number, since it uses less digits than its factorization.

10131323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140712833 (or 140712826 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10131323112 its reverse (21132313101), we get a palindrome (31263636213).

The spelling of 10131323112 in words is "ten billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred twelve".