131032031400220 has 48 divisors (see below), whose sum is σ = 282641977013760. Its totient is φ = 50989436596224.

The previous prime is 131032031400191. The next prime is 131032031400223. The reversal of 131032031400220 is 22004130230131.

It is a junction number, because it is equal to n+sod(n) for n = 131032031400191 and 131032031400200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032031400223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6284805 + ... + 17365564.

It is an arithmetic number, because the mean of its divisors is an integer number (5888374521120).

Almost surely, 2^{131032031400220} is an apocalyptic number.

131032031400220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131032031400220 is an abundant number, since it is smaller than the sum of its proper divisors (151609945613540).

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

131032031400220 is a wasteful number, since it uses less digits than its factorization.

131032031400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23657902 (or 23657900 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131032031400220 its reverse (22004130230131), we get a palindrome (153036161630351).

The spelling of 131032031400220 in words is "one hundred thirty-one trillion, thirty-two billion, thirty-one million, four hundred thousand, two hundred twenty".