3121192413 has 16 divisors (see below), whose sum is σ = 4627233600. Its totient is φ = 2079334800.

The previous prime is 3121192397. The next prime is 3121192421. The reversal of 3121192413 is 3142911213.

3121192413 is a `hidden beast` number, since 31 + 211 + 9 + 2 + 413 = 666.

It is not a de Polignac number, because 3121192413 - 2⁴ = 3121192397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121192423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658 + ... + 79011.

It is an arithmetic number, because the mean of its divisors is an integer number (289202100).

Almost surely, 2^3121192413 is an apocalyptic number.

It is an amenable number.

3121192413 is a deficient number, since it is larger than the sum of its proper divisors (1506041187).

3121192413 is a wasteful number, since it uses less digits than its factorization.

3121192413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81129 (or 81123 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3121192413 is about 55867.6329639980. The cubic root of 3121192413 is about 1461.4148436792.

The spelling of 3121192413 in words is "three billion, one hundred twenty-one million, one hundred ninety-two thousand, four hundred thirteen".