131012223032420 has 24 divisors (see below), whose sum is σ = 275285532280248. Its totient is φ = 52374438944000.

The previous prime is 131012223032413. The next prime is 131012223032437. The reversal of 131012223032420 is 24230322210131.

It can be written as a sum of positive squares in 4 ways, for example, as 45189155954944 + 85823067077476 = 6722288^2 + 9264074^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131012223032420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903106531 + ... + 1903175370.

It is an arithmetic number, because the mean of its divisors is an integer number (11470230511677).

Almost surely, 2^{131012223032420} is an apocalyptic number.

131012223032420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012223032420 is an abundant number, since it is smaller than the sum of its proper divisors (144273309247828).

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

131012223032420 is a wasteful number, since it uses less digits than its factorization.

131012223032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806283631 (or 3806283629 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131012223032420 its reverse (24230322210131), we get a palindrome (155242545242551).

The spelling of 131012223032420 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-three million, thirty-two thousand, four hundred twenty".