121160520 has 96 divisors (see below), whose sum is σ = 424078200. Its totient is φ = 29822976.

The previous prime is 121160519. The next prime is 121160531. The reversal of 121160520 is 25061121.

It can be written as a sum of positive squares in 4 ways, for example, as 105144516 + 16016004 = 10254^2 + 4002^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121160493 and 121160502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8265 + ... + 17624.

Almost surely, 2^121160520 is an apocalyptic number.

121160520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121160520 is an abundant number, since it is smaller than the sum of its proper divisors (302917680).

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

121160520 is a wasteful number, since it uses less digits than its factorization.

121160520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25919 (or 25912 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121160520 is about 11007.2939453800. The cubic root of 121160520 is about 494.8273655725.

The spelling of 121160520 in words is "one hundred twenty-one million, one hundred sixty thousand, five hundred twenty".