321012033131 has 4 divisors (see below), whose sum is σ = 324879648072. Its totient is φ = 317144418192.

The previous prime is 321012033109. The next prime is 321012033149. The reversal of 321012033131 is 131330210123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321012033131 is a prime.

It is a super-2 number, since 2×321012033131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321012033151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933807346 + ... + 1933807511.

It is an arithmetic number, because the mean of its divisors is an integer number (81219912018).

Almost surely, 2^321012033131 is an apocalyptic number.

321012033131 is a deficient number, since it is larger than the sum of its proper divisors (3867614941).

321012033131 is an equidigital number, since it uses as much as digits as its factorization.

321012033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867614940.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 321012033131 its reverse (131330210123), we get a palindrome (452342243254).

The spelling of 321012033131 in words is "three hundred twenty-one billion, twelve million, thirty-three thousand, one hundred thirty-one".