3121440403113 has 10 divisors (see below), whose sum is σ = 4662892454154. Its totient is φ = 2080960268688.

The previous prime is 3121440403091. The next prime is 3121440403139. The reversal of 3121440403113 is 3113040441213.

3121440403113 is a `hidden beast` number, since 3 + 1 + 2 + 144 + 0 + 403 + 113 = 666.

3121440403113 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2918316222864 + 203124180249 = 1708308^2 + 450693^2 .

It is not a de Polignac number, because 3121440403113 - 2²² = 3121436208809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3121440203113) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19268150556 + ... + 19268150717.

Almost surely, 2^{3121440403113} is an apocalyptic number.

It is an amenable number.

3121440403113 is a deficient number, since it is larger than the sum of its proper divisors (1541452051041).

3121440403113 is an equidigital number, since it uses as much as digits as its factorization.

3121440403113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38536301285 (or 38536301276 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 3121440403113 its reverse (3113040441213), we get a palindrome (6234480844326).

The spelling of 3121440403113 in words is "three trillion, one hundred twenty-one billion, four hundred forty million, four hundred three thousand, one hundred thirteen".