130121025 has 48 divisors (see below), whose sum is σ = 228556800. Its totient is φ = 65136960.

The previous prime is 130121023. The next prime is 130121059. The reversal of 130121025 is 520121031.

It is not a de Polignac number, because 130121025 - 2¹ = 130121023 is a prime.

It is a super-2 number, since 2×130121025² = 33862962294101250, which contains 22 as substring.

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 = 130120995 and 130121013.

It is not an unprimeable number, because it can be changed into a prime (130121023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180616 + ... + 181334.

It is an arithmetic number, because the mean of its divisors is an integer number (4761600).

Almost surely, 2^130121025 is an apocalyptic number.

130121025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130121025 is a deficient number, since it is larger than the sum of its proper divisors (98435775).

130121025 is a wasteful number, since it uses less digits than its factorization.

130121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 130121025 is about 11407.0603136829. The cubic root of 130121025 is about 506.7368552252.

Adding to 130121025 its reverse (520121031), we get a palindrome (650242056).

The spelling of 130121025 in words is "one hundred thirty million, one hundred twenty-one thousand, twenty-five".