121193880 has 64 divisors (see below), whose sum is σ = 375321600. Its totient is φ = 31274880.

The previous prime is 121193879. The next prime is 121193927. The reversal of 121193880 is 88391121.

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 15 ways as a sum of consecutive naturals, for example, 12570 + ... + 20009.

It is an arithmetic number, because the mean of its divisors is an integer number (5864400).

Almost surely, 2^121193880 is an apocalyptic number.

121193880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121193880 is an abundant number, since it is smaller than the sum of its proper divisors (254127720).

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

121193880 is a wasteful number, since it uses less digits than its factorization.

121193880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32624 (or 32620 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 121193880 is about 11008.8091999090. The cubic root of 121193880 is about 494.8727762011.

The spelling of 121193880 in words is "one hundred twenty-one million, one hundred ninety-three thousand, eight hundred eighty".