331121332312131 has 8 divisors (see below), whose sum is σ = 441495201346240. Its totient is φ = 220747509076392.

The previous prime is 331121332312109. The next prime is 331121332312139. The reversal of 331121332312131 is 131213233121133.

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

It is not a de Polignac number, because 331121332312131 - 2³⁷ = 330983893358659 is a prime.

It is a super-2 number, since 2×331121332312131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331121332312139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12692496 + ... + 28693938.

It is an arithmetic number, because the mean of its divisors is an integer number (55186900168280).

Almost surely, 2^{331121332312131} is an apocalyptic number.

331121332312131 is a deficient number, since it is larger than the sum of its proper divisors (110373869034109).

331121332312131 is a wasteful number, since it uses less digits than its factorization.

331121332312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22899185.

The product of its digits is 5832, while the sum is 30.

Adding to 331121332312131 its reverse (131213233121133), we get a palindrome (462334565433264).

The spelling of 331121332312131 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, three hundred thirty-two million, three hundred twelve thousand, one hundred thirty-one".