121310012999 has 12 divisors (see below), whose sum is σ = 144397493064. Its totient is φ = 101561869584.

The previous prime is 121310012977. The next prime is 121310013007. The reversal of 121310012999 is 999210013121.

It is a de Polignac number, because none of the positive numbers 2^k-121310012999 is a prime.

It is a super-2 number, since 2×121310012999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310012969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28785272 + ... + 28789485.

It is an arithmetic number, because the mean of its divisors is an integer number (12033124422).

Almost surely, 2^121310012999 is an apocalyptic number.

121310012999 is a deficient number, since it is larger than the sum of its proper divisors (23087480065).

121310012999 is an equidigital number, since it uses as much as digits as its factorization.

121310012999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57574814 (or 57574807 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 121310012999 in words is "one hundred twenty-one billion, three hundred ten million, twelve thousand, nine hundred ninety-nine".