3132130121 has 4 divisors (see below), whose sum is σ = 3133790100. Its totient is φ = 3130470144.

The previous prime is 3132130103. The next prime is 3132130147. The reversal of 3132130121 is 1210312313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210312313 = 7 ⋅172901759.

It can be written as a sum of positive squares in 2 ways, for example, as 1604883721 + 1527246400 = 40061^2 + 39080^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132130121 - 2¹⁰ = 3132129097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3132130121.

It is not an unprimeable number, because it can be changed into a prime (3132130171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827156 + ... + 830933.

It is an arithmetic number, because the mean of its divisors is an integer number (783447525).

Almost surely, 2^3132130121 is an apocalyptic number.

It is an amenable number.

3132130121 is a deficient number, since it is larger than the sum of its proper divisors (1659979).

3132130121 is a wasteful number, since it uses less digits than its factorization.

3132130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659978.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3132130121 is about 55965.4368427514. The cubic root of 3132130121 is about 1463.1199498544.

Adding to 3132130121 its reverse (1210312313), we get a palindrome (4342442434).

The spelling of 3132130121 in words is "three billion, one hundred thirty-two million, one hundred thirty thousand, one hundred twenty-one".