120863512 has 48 divisors (see below), whose sum is σ = 284694480. Its totient is φ = 47087040.

The previous prime is 120863473. The next prime is 120863527. The reversal of 120863512 is 215368021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2143 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (5931135).

Almost surely, 2^120863512 is an apocalyptic number.

It is an amenable number.

120863512 is an abundant number, since it is smaller than the sum of its proper divisors (163830968).

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

120863512 is a wasteful number, since it uses less digits than its factorization.

120863512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17872 (or 17857 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 120863512 is about 10993.7942494846. The cubic root of 120863512 is about 494.4227014673.

The spelling of 120863512 in words is "one hundred twenty million, eight hundred sixty-three thousand, five hundred twelve".