129120382260 has 48 divisors (see below), whose sum is σ = 401707857600. Its totient is φ = 34432101792.

The previous prime is 129120382247. The next prime is 129120382271. The reversal of 129120382260 is 62283021921.

It is a happy number.

129120382260 is a `hidden beast` number, since 1 + 2 + 9 + 12 + 0 + 382 + 260 = 666.

It is a super-2 number, since 2×129120382260² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119555370 + ... + 119556449.

It is an arithmetic number, because the mean of its divisors is an integer number (8368913700).

Almost surely, 2^129120382260 is an apocalyptic number.

129120382260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129120382260 is an abundant number, since it is smaller than the sum of its proper divisors (272587475340).

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

129120382260 is a wasteful number, since it uses less digits than its factorization.

129120382260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239111837 (or 239111829 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 129120382260 in words is "one hundred twenty-nine billion, one hundred twenty million, three hundred eighty-two thousand, two hundred sixty".