121230013099 has 4 divisors (see below), whose sum is σ = 130555398736. Its totient is φ = 111904627464.

The previous prime is 121230013007. The next prime is 121230013111. The reversal of 121230013099 is 990310032121.

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

It is a cyclic number.

It is not a de Polignac number, because 121230013099 - 2²⁹ = 120693142187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121230013099.

It is not an unprimeable number, because it can be changed into a prime (121230014099) 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, 4662692799 + ... + 4662692824.

It is an arithmetic number, because the mean of its divisors is an integer number (32638849684).

Almost surely, 2^121230013099 is an apocalyptic number.

121230013099 is a deficient number, since it is larger than the sum of its proper divisors (9325385637).

121230013099 is an equidigital number, since it uses as much as digits as its factorization.

121230013099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325385636.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 121230013099 in words is "one hundred twenty-one billion, two hundred thirty million, thirteen thousand, ninety-nine".