99312411421399 has 16 divisors (see below), whose sum is σ = 108690825484800. Its totient is φ = 89992341684000.

The previous prime is 99312411421397. The next prime is 99312411421409.

It is a happy number.

99312411421399 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 99312411421399 - 2¹ = 99312411421397 is a prime.

It is a super-3 number, since 3×99312411421399³ (a number of 43 digits) contains 333 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 (99312411421397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275549089 + ... + 275909269.

It is an arithmetic number, because the mean of its divisors is an integer number (6793176592800).

Almost surely, 2^{99312411421399} is an apocalyptic number.

99312411421399 is a deficient number, since it is larger than the sum of its proper divisors (9378414063401).

99312411421399 is a wasteful number, since it uses less digits than its factorization.

99312411421399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441102.

The product of its digits is 3779136, while the sum is 58.

The spelling of 99312411421399 in words is "ninety-nine trillion, three hundred twelve billion, four hundred eleven million, four hundred twenty-one thousand, three hundred ninety-nine".