331420100031313 has 4 divisors (see below), whose sum is σ = 331441053458020. Its totient is φ = 331399146604608.

The previous prime is 331420100031311. The next prime is 331420100031421. The reversal of 331420100031313 is 313130001024133.

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

It can be written as a sum of positive squares in 2 ways, for example, as 179359806230784 + 152060293800529 = 13392528^2 + 12331273^2 .

It is a cyclic number.

It is not a de Polignac number, because 331420100031313 - 2¹ = 331420100031311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331420100031311) 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, 10476689628 + ... + 10476721261.

It is an arithmetic number, because the mean of its divisors is an integer number (82860263364505).

Almost surely, 2^{331420100031313} is an apocalyptic number.

It is an amenable number.

331420100031313 is a deficient number, since it is larger than the sum of its proper divisors (20953426707).

331420100031313 is a wasteful number, since it uses less digits than its factorization.

331420100031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20953426706.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 331420100031313 its reverse (313130001024133), we get a palindrome (644550101055446).

The spelling of 331420100031313 in words is "three hundred thirty-one trillion, four hundred twenty billion, one hundred million, thirty-one thousand, three hundred thirteen".