131231400141320 has 32 divisors (see below), whose sum is σ = 312639512103000. Its totient is φ = 49404762405888.

The previous prime is 131231400141299. The next prime is 131231400141343. The reversal of 131231400141320 is 23141004132131.

It can be written as a sum of positive squares in 4 ways, for example, as 131158427763364 + 72972377956 = 11452442^2 + 270134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131231400141320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96493675895 + ... + 96493677254.

Almost surely, 2^{131231400141320} is an apocalyptic number.

131231400141320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131231400141320 is an abundant number, since it is smaller than the sum of its proper divisors (181408111961680).

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

131231400141320 is a wasteful number, since it uses less digits than its factorization.

131231400141320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192987353177 (or 192987353173 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131231400141320 its reverse (23141004132131), we get a palindrome (154372404273451).

The spelling of 131231400141320 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, four hundred million, one hundred forty-one thousand, three hundred twenty".