3121001310319 has 2 divisors, whose sum is σ = 3121001310320. Its totient is φ = 3121001310318.

The previous prime is 3121001310293. The next prime is 3121001310403. The reversal of 3121001310319 is 9130131001213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121001310319 - 2⁷ = 3121001310191 is a prime.

It is a super-2 number, since 2×3121001310319² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3121001310293 and 3121001310302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121001320319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560500655159 + 1560500655160.

It is an arithmetic number, because the mean of its divisors is an integer number (1560500655160).

Almost surely, 2^{3121001310319} is an apocalyptic number.

3121001310319 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121001310319 is an equidigital number, since it uses as much as digits as its factorization.

3121001310319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 3121001310319 in words is "three trillion, one hundred twenty-one billion, one million, three hundred ten thousand, three hundred nineteen".