131313203013021 has 16 divisors (see below), whose sum is σ = 175266235287360. Its totient is φ = 87451154743040.

The previous prime is 131313203013017. The next prime is 131313203013029. The reversal of 131313203013021 is 120310302313131.

It is a cyclic number.

It is not a de Polignac number, because 131313203013021 - 2² = 131313203013017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131313203012982 and 131313203013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313203013029) 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, 607336891 + ... + 607553063.

It is an arithmetic number, because the mean of its divisors is an integer number (10954139705460).

Almost surely, 2^{131313203013021} is an apocalyptic number.

It is an amenable number.

131313203013021 is a deficient number, since it is larger than the sum of its proper divisors (43953032274339).

131313203013021 is a wasteful number, since it uses less digits than its factorization.

131313203013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425676.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 131313203013021 its reverse (120310302313131), we get a palindrome (251623505326152).

The spelling of 131313203013021 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred three million, thirteen thousand, twenty-one".