120978130 has 64 divisors (see below), whose sum is σ = 282159360. Its totient is φ = 36267264.

The previous prime is 120978127. The next prime is 120978131. The reversal of 120978130 is 31879021.

It is a junction number, because it is equal to n+sod(n) for n = 120978092 and 120978101.

It is not an unprimeable number, because it can be changed into a prime (120978131) 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 31 ways as a sum of consecutive naturals, for example, 13792 + ... + 20788.

It is an arithmetic number, because the mean of its divisors is an integer number (4408740).

Almost surely, 2^120978130 is an apocalyptic number.

120978130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120978130 is an abundant number, since it is smaller than the sum of its proper divisors (161181230).

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

120978130 is a wasteful number, since it uses less digits than its factorization.

120978130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 120978130 is about 10999.0058641679. The cubic root of 120978130 is about 494.5789433744.

The spelling of 120978130 in words is "one hundred twenty million, nine hundred seventy-eight thousand, one hundred thirty".