131102122020 has 24 divisors (see below), whose sum is σ = 367085941824. Its totient is φ = 34960565856.

The previous prime is 131102122013. The next prime is 131102122043. The reversal of 131102122020 is 20221201131.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1092517624 + ... + 1092517743.

It is an arithmetic number, because the mean of its divisors is an integer number (15295247576).

Almost surely, 2^131102122020 is an apocalyptic number.

131102122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131102122020 is an abundant number, since it is smaller than the sum of its proper divisors (235983819804).

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

131102122020 is a wasteful number, since it uses less digits than its factorization.

131102122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185035379 (or 2185035377 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131102122020 its reverse (20221201131), we get a palindrome (151323323151).

The spelling of 131102122020 in words is "one hundred thirty-one billion, one hundred two million, one hundred twenty-two thousand, twenty".