121130399 has 8 divisors (see below), whose sum is σ = 131794320. Its totient is φ = 110658816.

The previous prime is 121130393. The next prime is 121130407. The reversal of 121130399 is 993031121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121130399 - 2¹⁶ = 121064863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130393) 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, 46769 + ... + 49290.

It is an arithmetic number, because the mean of its divisors is an integer number (16474290).

Almost surely, 2^121130399 is an apocalyptic number.

121130399 is a deficient number, since it is larger than the sum of its proper divisors (10663921).

121130399 is an equidigital number, since it uses as much as digits as its factorization.

121130399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96169.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 121130399 is about 11005.9256312225. The cubic root of 121130399 is about 494.7863568062.

The spelling of 121130399 in words is "one hundred twenty-one million, one hundred thirty thousand, three hundred ninety-nine".