3123113444013 has 4 divisors (see below), whose sum is σ = 4164151258688. Its totient is φ = 2082075629340.

The previous prime is 3123113443997. The next prime is 3123113444021. The reversal of 3123113444013 is 3104443113213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3123113444013 - 2⁴ = 3123113443997 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 (3123113444053) 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, 520518907333 + ... + 520518907338.

It is an arithmetic number, because the mean of its divisors is an integer number (1041037814672).

Almost surely, 2^{3123113444013} is an apocalyptic number.

It is an amenable number.

3123113444013 is a deficient number, since it is larger than the sum of its proper divisors (1041037814675).

3123113444013 is a wasteful number, since it uses less digits than its factorization.

3123113444013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041037814674.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 3123113444013 its reverse (3104443113213), we get a palindrome (6227556557226).

The spelling of 3123113444013 in words is "three trillion, one hundred twenty-three billion, one hundred thirteen million, four hundred forty-four thousand, thirteen".