331256432131121 has 8 divisors (see below), whose sum is σ = 380990109385920. Its totient is φ = 282125587328208.

The previous prime is 331256432131087. The next prime is 331256432131181. The reversal of 331256432131121 is 121131234652133.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331256432131121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331256432131181) 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, 150708111791 + ... + 150708113988.

It is an arithmetic number, because the mean of its divisors is an integer number (47623763673240).

Almost surely, 2^{331256432131121} is an apocalyptic number.

It is an amenable number.

331256432131121 is a deficient number, since it is larger than the sum of its proper divisors (49733677254799).

331256432131121 is a wasteful number, since it uses less digits than its factorization.

331256432131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301416225943.

The product of its digits is 77760, while the sum is 38.

Adding to 331256432131121 its reverse (121131234652133), we get a palindrome (452387666783254).

The spelling of 331256432131121 in words is "three hundred thirty-one trillion, two hundred fifty-six billion, four hundred thirty-two million, one hundred thirty-one thousand, one hundred twenty-one".