2130121131 has 16 divisors (see below), whose sum is σ = 3020378400. Its totient is φ = 1330702848.

The previous prime is 2130121129. The next prime is 2130121139. The reversal of 2130121131 is 1311210312.

It is a happy number.

It is not a de Polignac number, because 2130121131 - 2¹ = 2130121129 is a prime.

It is a super-2 number, since 2×2130121131² = 9074832065465438322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2130121131.

It is not an unprimeable number, because it can be changed into a prime (2130121139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79516 + ... + 102873.

It is an arithmetic number, because the mean of its divisors is an integer number (188773650).

Almost surely, 2^2130121131 is an apocalyptic number.

2130121131 is a deficient number, since it is larger than the sum of its proper divisors (890257269).

2130121131 is a wasteful number, since it uses less digits than its factorization.

2130121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182638.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2130121131 is about 46153.2353253810. The cubic root of 2130121131 is about 1286.6727409025.

Adding to 2130121131 its reverse (1311210312), we get a palindrome (3441331443).

The spelling of 2130121131 in words is "two billion, one hundred thirty million, one hundred twenty-one thousand, one hundred thirty-one".