121079730 has 32 divisors (see below), whose sum is σ = 291184704. Its totient is φ = 32222016.

The previous prime is 121079711. The next prime is 121079731. The reversal of 121079730 is 37970121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121079731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11832 + ... + 19548.

It is an arithmetic number, because the mean of its divisors is an integer number (9099522).

Almost surely, 2^121079730 is an apocalyptic number.

121079730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121079730 is an abundant number, since it is smaller than the sum of its proper divisors (170104974).

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

121079730 is a wasteful number, since it uses less digits than its factorization.

121079730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 121079730 is about 11003.6234941041. The cubic root of 121079730 is about 494.7173572636.

The spelling of 121079730 in words is "one hundred twenty-one million, seventy-nine thousand, seven hundred thirty".