3121456324523 has 4 divisors (see below), whose sum is σ = 3121541421480. Its totient is φ = 3121371227568.

The previous prime is 3121456324513. The next prime is 3121456324559. The reversal of 3121456324523 is 3254236541213.

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 3121456324523 - 2³⁰ = 3120382582699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121456324513) 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, 42493433 + ... + 42566826.

It is an arithmetic number, because the mean of its divisors is an integer number (780385355370).

Almost surely, 2^{3121456324523} is an apocalyptic number.

3121456324523 is a deficient number, since it is larger than the sum of its proper divisors (85096957).

3121456324523 is an equidigital number, since it uses as much as digits as its factorization.

3121456324523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85096956.

The product of its digits is 518400, while the sum is 41.

The spelling of 3121456324523 in words is "three trillion, one hundred twenty-one billion, four hundred fifty-six million, three hundred twenty-four thousand, five hundred twenty-three".