131213231010 has 24 divisors (see below), whose sum is σ = 341154400860. Its totient is φ = 34990194912.

The previous prime is 131213231003. The next prime is 131213231021. The reversal of 131213231010 is 10132312131.

131213231010 is a `hidden beast` number, since 1 + 312 + 1 + 32 + 310 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 127472563089 + 3740667921 = 357033^2 + 61161^2 .

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 11 ways as a sum of consecutive naturals, for example, 728962305 + ... + 728962484.

Almost surely, 2^131213231010 is an apocalyptic number.

131213231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131213231010 is an abundant number, since it is smaller than the sum of its proper divisors (209941169850).

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

131213231010 is a wasteful number, since it uses less digits than its factorization.

131213231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457924802 (or 1457924799 counting only the distinct ones).

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

Adding to 131213231010 its reverse (10132312131), we get a palindrome (141345543141).

The spelling of 131213231010 in words is "one hundred thirty-one billion, two hundred thirteen million, two hundred thirty-one thousand, ten".