121887320 has 16 divisors (see below), whose sum is σ = 274246560. Its totient is φ = 48754912.

The previous prime is 121887277. The next prime is 121887341. The reversal of 121887320 is 23788121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523552 + ... + 1523631.

It is an arithmetic number, because the mean of its divisors is an integer number (17140410).

Almost surely, 2^121887320 is an apocalyptic number.

121887320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121887320 is an abundant number, since it is smaller than the sum of its proper divisors (152359240).

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

121887320 is a wasteful number, since it uses less digits than its factorization.

121887320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047194 (or 3047190 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 121887320 is about 11040.2590549316. The cubic root of 121887320 is about 495.8148263852.

The spelling of 121887320 in words is "one hundred twenty-one million, eight hundred eighty-seven thousand, three hundred twenty".