131313110233220 has 48 divisors (see below), whose sum is σ = 283815193431168. Its totient is φ = 51012534693120.

The previous prime is 131313110233219. The next prime is 131313110233237. The reversal of 131313110233220 is 22332011313131.

It is a self number, because there is not a number n which added to its sum of digits gives 131313110233220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690009497 + ... + 690199776.

It is an arithmetic number, because the mean of its divisors is an integer number (5912816529816).

Almost surely, 2^{131313110233220} is an apocalyptic number.

131313110233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131313110233220 is an abundant number, since it is smaller than the sum of its proper divisors (152502083197948).

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

131313110233220 is a wasteful number, since it uses less digits than its factorization.

131313110233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380209420 (or 1380209418 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131313110233220 its reverse (22332011313131), we get a palindrome (153645121546351).

The spelling of 131313110233220 in words is "one hundred thirty-one trillion, three hundred thirteen billion, one hundred ten million, two hundred thirty-three thousand, two hundred twenty".