121013329 has 4 divisors (see below), whose sum is σ = 121059684. Its totient is φ = 120966976.

The previous prime is 121013311. The next prime is 121013351. The reversal of 121013329 is 923310121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24482704 + 96530625 = 4948^2 + 9825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121013329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121013929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19012 + ... + 24565.

It is an arithmetic number, because the mean of its divisors is an integer number (30264921).

Almost surely, 2^121013329 is an apocalyptic number.

It is an amenable number.

121013329 is a deficient number, since it is larger than the sum of its proper divisors (46355).

121013329 is an equidigital number, since it uses as much as digits as its factorization.

121013329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46354.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 121013329 is about 11000.6058469522. The cubic root of 121013329 is about 494.6269052006.

The spelling of 121013329 in words is "one hundred twenty-one million, thirteen thousand, three hundred twenty-nine".