120897279500 has 24 divisors (see below), whose sum is σ = 264039659520. Its totient is φ = 48358911600.

The previous prime is 120897279491. The next prime is 120897279553. The reversal of 120897279500 is 5972798021.

It is a super-2 number, since 2×120897279500² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

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 7 ways as a sum of consecutive naturals, for example, 120896780 + ... + 120897779.

It is an arithmetic number, because the mean of its divisors is an integer number (11001652480).

Almost surely, 2^120897279500 is an apocalyptic number.

120897279500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120897279500 is an abundant number, since it is smaller than the sum of its proper divisors (143142380020).

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

120897279500 is a wasteful number, since it uses less digits than its factorization.

120897279500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241794578 (or 241794566 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 50.

The spelling of 120897279500 in words is "one hundred twenty billion, eight hundred ninety-seven million, two hundred seventy-nine thousand, five hundred".