331201032232013 has 4 divisors (see below), whose sum is σ = 338903381818848. Its totient is φ = 323498682645180.

The previous prime is 331201032232009. The next prime is 331201032232027. The reversal of 331201032232013 is 310232230102133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331201032232013 - 2² = 331201032232009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201032232073) 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, 3851174793353 + ... + 3851174793438.

It is an arithmetic number, because the mean of its divisors is an integer number (84725845454712).

Almost surely, 2^{331201032232013} is an apocalyptic number.

It is an amenable number.

331201032232013 is a deficient number, since it is larger than the sum of its proper divisors (7702349586835).

331201032232013 is an equidigital number, since it uses as much as digits as its factorization.

331201032232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7702349586834.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 331201032232013 its reverse (310232230102133), we get a palindrome (641433262334146).

The spelling of 331201032232013 in words is "three hundred thirty-one trillion, two hundred one billion, thirty-two million, two hundred thirty-two thousand, thirteen".