130121115 has 32 divisors (see below), whose sum is σ = 217857600. Its totient is φ = 66232320.

The previous prime is 130121099. The next prime is 130121149. The reversal of 130121115 is 511121031.

It is not a de Polignac number, because 130121115 - 2⁴ = 130121099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 130121094 and 130121103.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 37035 + ... + 40395.

It is an arithmetic number, because the mean of its divisors is an integer number (6808050).

Almost surely, 2^130121115 is an apocalyptic number.

130121115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130121115 is a deficient number, since it is larger than the sum of its proper divisors (87736485).

130121115 is a wasteful number, since it uses less digits than its factorization.

130121115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 130121115 is about 11407.0642586075. The cubic root of 130121115 is about 506.7369720556.

Adding to 130121115 its reverse (511121031), we get a palindrome (641242146).

The spelling of 130121115 in words is "one hundred thirty million, one hundred twenty-one thousand, one hundred fifteen".