131403033020021 has 24 divisors (see below), whose sum is σ = 154838136096000. Its totient is φ = 111171943550304.

The previous prime is 131403033019949. The next prime is 131403033020027. The reversal of 131403033020021 is 120020330304131.

It is a de Polignac number, because none of the positive numbers 2^k-131403033020021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403033020027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7734035 + ... + 17961663.

It is an arithmetic number, because the mean of its divisors is an integer number (6451589004000).

Almost surely, 2^{131403033020021} is an apocalyptic number.

It is an amenable number.

131403033020021 is a deficient number, since it is larger than the sum of its proper divisors (23435103075979).

131403033020021 is a wasteful number, since it uses less digits than its factorization.

131403033020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231041 (or 10231034 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131403033020021 its reverse (120020330304131), we get a palindrome (251423363324152).

The spelling of 131403033020021 in words is "one hundred thirty-one trillion, four hundred three billion, thirty-three million, twenty thousand, twenty-one".