1170121920 has 112 divisors (see below), whose sum is σ = 4052913408. Its totient is φ = 283663360.

The previous prime is 1170121913. The next prime is 1170121937. The reversal of 1170121920 is 291210711.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 44844 + ... + 65963.

Almost surely, 2^1170121920 is an apocalyptic number.

1170121920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170121920 is an abundant number, since it is smaller than the sum of its proper divisors (2882791488).

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

1170121920 is a wasteful number, since it uses less digits than its factorization.

1170121920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110838 (or 110828 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 1170121920 is about 34207.0448884437. The cubic root of 1170121920 is about 1053.7648430539.

The spelling of 1170121920 in words is "one billion, one hundred seventy million, one hundred twenty-one thousand, nine hundred twenty".