131313211111110 has 64 divisors (see below), whose sum is σ = 360178802698752. Its totient is φ = 30013996283136.

The previous prime is 131313211111091. The next prime is 131313211111111. The reversal of 131313211111110 is 11111112313131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313211111111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9370842 + ... + 18720018.

It is an arithmetic number, because the mean of its divisors is an integer number (5627793792168).

Almost surely, 2^{131313211111110} is an apocalyptic number.

131313211111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131313211111110 is an abundant number, since it is smaller than the sum of its proper divisors (228865591587642).

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

131313211111110 is a wasteful number, since it uses less digits than its factorization.

131313211111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416077.

The product of its (nonzero) digits is 54, while the sum is 21.

Adding to 131313211111110 its reverse (11111112313131), we get a palindrome (142424323424241).

The spelling of 131313211111110 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred eleven million, one hundred eleven thousand, one hundred ten".