130121250 has 80 divisors (see below), whose sum is σ = 371731008. Its totient is φ = 29736000.

The previous prime is 130121227. The next prime is 130121287. The reversal of 130121250 is 52121031.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23772 + ... + 28728.

Almost surely, 2^130121250 is an apocalyptic number.

130121250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130121250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185865504).

130121250 is an abundant number, since it is smaller than the sum of its proper divisors (241609758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130121250 is an equidigital number, since it uses as much as digits as its factorization.

130121250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4974 counting only the distinct ones).

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

The square root of 130121250 is about 11407.0701759917. The cubic root of 130121250 is about 506.7371473013.

Adding to 130121250 its reverse (52121031), we get a palindrome (182242281).

The spelling of 130121250 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred fifty".