131311132022020 has 96 divisors (see below), whose sum is σ = 277586965555200. Its totient is φ = 52176460155264.

The previous prime is 131311132022017. The next prime is 131311132022029. The reversal of 131311132022020 is 20220231113131.

It is a super-2 number, since 2×131311132022020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131311132021982 and 131311132022000.

It is not an unprimeable number, because it can be changed into a prime (131311132022029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6271116711 + ... + 6271137649.

It is an arithmetic number, because the mean of its divisors is an integer number (2891530891200).

Almost surely, 2^{131311132022020} is an apocalyptic number.

131311132022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131311132022020 is an abundant number, since it is smaller than the sum of its proper divisors (146275833533180).

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

131311132022020 is a wasteful number, since it uses less digits than its factorization.

131311132022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24617 (or 24615 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131311132022020 its reverse (20220231113131), we get a palindrome (151531363135151).

The spelling of 131311132022020 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred thirty-two million, twenty-two thousand, twenty".