3121332313 has 8 divisors (see below), whose sum is σ = 3422203200. Its totient is φ = 2823313680.

The previous prime is 3121332299. The next prime is 3121332329. The reversal of 3121332313 is 3132331213.

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

It is a de Polignac number, because none of the positive numbers 2^k-3121332313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121332343) 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, 710770 + ... + 715147.

It is an arithmetic number, because the mean of its divisors is an integer number (427775400).

Almost surely, 2^3121332313 is an apocalyptic number.

It is an amenable number.

3121332313 is a deficient number, since it is larger than the sum of its proper divisors (300870887).

3121332313 is a wasteful number, since it uses less digits than its factorization.

3121332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426127.

The product of its digits is 972, while the sum is 22.

The square root of 3121332313 is about 55868.8850166173. The cubic root of 3121332313 is about 1461.4366781637.

Adding to 3121332313 its reverse (3132331213), we get a palindrome (6253663526).

The spelling of 3121332313 in words is "three billion, one hundred twenty-one million, three hundred thirty-two thousand, three hundred thirteen".