3121242994 has 8 divisors (see below), whose sum is σ = 4734469980. Its totient is φ = 1543086336.

The previous prime is 3121242989. The next prime is 3121242997. The reversal of 3121242994 is 4992421213.

It can be written as a sum of positive squares in 2 ways, for example, as 2538648225 + 582594769 = 50385^2 + 24137^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3121242997) 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, 8767359 + ... + 8767714.

Almost surely, 2^3121242994 is an apocalyptic number.

3121242994 is a deficient number, since it is larger than the sum of its proper divisors (1613226986).

3121242994 is a wasteful number, since it uses less digits than its factorization.

3121242994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17535164.

The product of its digits is 31104, while the sum is 37.

The square root of 3121242994 is about 55868.0856482482. The cubic root of 3121242994 is about 1461.4227380366.

The spelling of 3121242994 in words is "three billion, one hundred twenty-one million, two hundred forty-two thousand, nine hundred ninety-four".