3121430563563 has 16 divisors (see below), whose sum is σ = 4485044256000. Its totient is φ = 1919598869664.

The previous prime is 3121430563561. The next prime is 3121430563583. The reversal of 3121430563563 is 3653650341213.

It is not a de Polignac number, because 3121430563563 - 2¹ = 3121430563561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121430563561) 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, 26638231 + ... + 26755152.

It is an arithmetic number, because the mean of its divisors is an integer number (280315266000).

Almost surely, 2^{3121430563563} is an apocalyptic number.

3121430563563 is a deficient number, since it is larger than the sum of its proper divisors (1363613692437).

3121430563563 is a wasteful number, since it uses less digits than its factorization.

3121430563563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53394898.

The product of its (nonzero) digits is 583200, while the sum is 42.

The spelling of 3121430563563 in words is "three trillion, one hundred twenty-one billion, four hundred thirty million, five hundred sixty-three thousand, five hundred sixty-three".