131000320213021 has 8 divisors (see below), whose sum is σ = 149717357524160. Its totient is φ = 112283959364928.

The previous prime is 131000320212941. The next prime is 131000320213027. The reversal of 131000320213021 is 120312023000131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131000320213021 - 2²¹ = 131000318115869 is a prime.

It is a super-2 number, since 2×131000320213021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131000320213021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000320213027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168700716 + ... + 169475461.

It is an arithmetic number, because the mean of its divisors is an integer number (18714669690520).

Almost surely, 2^{131000320213021} is an apocalyptic number.

It is an amenable number.

131000320213021 is a deficient number, since it is larger than the sum of its proper divisors (18717037311139).

131000320213021 is an equidigital number, since it uses as much as digits as its factorization.

131000320213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338231523.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131000320213021 its reverse (120312023000131), we get a palindrome (251312343213152).

The spelling of 131000320213021 in words is "one hundred thirty-one trillion, three hundred twenty million, two hundred thirteen thousand, twenty-one".