3121540051 has 12 divisors (see below), whose sum is σ = 3844779048. Its totient is φ = 2518216512.

The previous prime is 3121540033. The next prime is 3121540067. The reversal of 3121540051 is 1500451213.

It is a happy number.

It is not a de Polignac number, because 3121540051 - 2¹⁹ = 3121015763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121540021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1872841 + ... + 1874506.

It is an arithmetic number, because the mean of its divisors is an integer number (320398254).

Almost surely, 2^3121540051 is an apocalyptic number.

3121540051 is a deficient number, since it is larger than the sum of its proper divisors (723238997).

3121540051 is a wasteful number, since it uses less digits than its factorization.

3121540051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747378 (or 3747371 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 3121540051 is about 55870.7441421716. The cubic root of 3121540051 is about 1461.4690990626.

Adding to 3121540051 its reverse (1500451213), we get a palindrome (4621991264).

The spelling of 3121540051 in words is "three billion, one hundred twenty-one million, five hundred forty thousand, fifty-one".