3121413140 has 12 divisors (see below), whose sum is σ = 6554967636. Its totient is φ = 1248565248.

The previous prime is 3121413131. The next prime is 3121413167. The reversal of 3121413140 is 413141213.

It can be written as a sum of positive squares in 2 ways, for example, as 629207056 + 2492206084 = 25084^2 + 49922^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 156070657 = 3121413140 / (3 + 1 + 2 + 1 + 4 + 1 + 3 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78035309 + ... + 78035348.

It is an arithmetic number, because the mean of its divisors is an integer number (546247303).

Almost surely, 2^3121413140 is an apocalyptic number.

It is an amenable number.

3121413140 is an abundant number, since it is smaller than the sum of its proper divisors (3433554496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121413140 is a wasteful number, since it uses less digits than its factorization.

3121413140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156070666 (or 156070664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3121413140 is about 55869.6083752159. The cubic root of 3121413140 is about 1461.4492927047.

Adding to 3121413140 its reverse (413141213), we get a palindrome (3534554353).

The spelling of 3121413140 in words is "three billion, one hundred twenty-one million, four hundred thirteen thousand, one hundred forty".