130121131 has 4 divisors (see below), whose sum is σ = 148709872. Its totient is φ = 111532392.

The previous prime is 130121099. The next prime is 130121149. The reversal of 130121131 is 131121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130121131 - 2⁵ = 130121099 is a prime.

It is a super-2 number, since 2×130121131² = 33863017465438322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130121191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9294360 + ... + 9294373.

It is an arithmetic number, because the mean of its divisors is an integer number (37177468).

Almost surely, 2^130121131 is an apocalyptic number.

130121131 is a deficient number, since it is larger than the sum of its proper divisors (18588741).

130121131 is an equidigital number, since it uses as much as digits as its factorization.

130121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18588740.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 130121131 is about 11407.0649599272. The cubic root of 130121131 is about 506.7369928255.

Adding to 130121131 its reverse (131121031), we get a palindrome (261242162).

The spelling of 130121131 in words is "one hundred thirty million, one hundred twenty-one thousand, one hundred thirty-one".