3161333261421 has 12 divisors (see below), whose sum is σ = 4611581854620. Its totient is φ = 2086688620800.

The previous prime is 3161333261381. The next prime is 3161333261453. The reversal of 3161333261421 is 1241623331613.

3161333261421 is a `hidden beast` number, since 3 + 1 + 6 + 1 + 3 + 3 + 32 + 614 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2927281464900 + 234051796521 = 1710930^2 + 483789^2 .

It is not a de Polignac number, because 3161333261421 - 2²³ = 3161324872813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161333261521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1738906276 + ... + 1738908093.

It is an arithmetic number, because the mean of its divisors is an integer number (384298487885).

Almost surely, 2^{3161333261421} is an apocalyptic number.

It is an amenable number.

3161333261421 is a deficient number, since it is larger than the sum of its proper divisors (1450248593199).

3161333261421 is a wasteful number, since it uses less digits than its factorization.

3161333261421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477814476 (or 3477814473 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The spelling of 3161333261421 in words is "three trillion, one hundred sixty-one billion, three hundred thirty-three million, two hundred sixty-one thousand, four hundred twenty-one".