131201024020 has 48 divisors (see below), whose sum is σ = 301678868736. Its totient is φ = 47533392000.

The previous prime is 131201023979. The next prime is 131201024021. The reversal of 131201024020 is 20420102131.

It is a junction number, because it is equal to n+sod(n) for n = 131201023985 and 131201024003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201024021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040691 + ... + 1159930.

It is an arithmetic number, because the mean of its divisors is an integer number (6284976432).

Almost surely, 2^131201024020 is an apocalyptic number.

131201024020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201024020 is an abundant number, since it is smaller than the sum of its proper divisors (170477844716).

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

131201024020 is a wasteful number, since it uses less digits than its factorization.

131201024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200912 (or 2200910 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 131201024020 its reverse (20420102131), we get a palindrome (151621126151).

The spelling of 131201024020 in words is "one hundred thirty-one billion, two hundred one million, twenty-four thousand, twenty".