131007631101220 has 48 divisors (see below), whose sum is σ = 276261019760880. Its totient is φ = 52185068273664.

The previous prime is 131007631101119. The next prime is 131007631101283. The reversal of 131007631101220 is 22101136700131.

It can be written as a sum of positive squares in 8 ways, for example, as 4918672324864 + 126088958776356 = 2217808^2 + 11228934^2 .

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, 15628312 + ... + 22500208.

It is an arithmetic number, because the mean of its divisors is an integer number (5755437911685).

Almost surely, 2^{131007631101220} is an apocalyptic number.

131007631101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131007631101220 is an abundant number, since it is smaller than the sum of its proper divisors (145253388659660).

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

131007631101220 is a wasteful number, since it uses less digits than its factorization.

131007631101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875872 (or 6875870 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 131007631101220 its reverse (22101136700131), we get a palindrome (153108767801351).

The spelling of 131007631101220 in words is "one hundred thirty-one trillion, seven billion, six hundred thirty-one million, one hundred one thousand, two hundred twenty".