2313121039 has 4 divisors (see below), whose sum is σ = 2314606320. Its totient is φ = 2311635760.

The previous prime is 2313121033. The next prime is 2313121043. The reversal of 2313121039 is 9301213132.

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

It is a cyclic number.

It is not a de Polignac number, because 2313121039 - 2¹³ = 2313112847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313121033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740302 + ... + 743419.

It is an arithmetic number, because the mean of its divisors is an integer number (578651580).

Almost surely, 2^2313121039 is an apocalyptic number.

2313121039 is a deficient number, since it is larger than the sum of its proper divisors (1485281).

2313121039 is a wasteful number, since it uses less digits than its factorization.

2313121039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485280.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 2313121039 is about 48094.9169767451. The cubic root of 2313121039 is about 1322.5114870662.

The spelling of 2313121039 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, thirty-nine".