121005080 has 32 divisors (see below), whose sum is σ = 311156640. Its totient is φ = 41487360.

The previous prime is 121005043. The next prime is 121005089. The reversal of 121005080 is 80500121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121005089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215801 + ... + 216360.

It is an arithmetic number, because the mean of its divisors is an integer number (9723645).

Almost surely, 2^121005080 is an apocalyptic number.

121005080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121005080 is an abundant number, since it is smaller than the sum of its proper divisors (190151560).

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

121005080 is a wasteful number, since it uses less digits than its factorization.

121005080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432179 (or 432175 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 121005080 is about 11000.2309066674. The cubic root of 121005080 is about 494.6156660253.

The spelling of 121005080 in words is "one hundred twenty-one million, five thousand, eighty".