99999234440213 has 4 divisors (see below), whose sum is σ = 100397637764928. Its totient is φ = 99600831115500.

The previous prime is 99999234440143. The next prime is 99999234440221. The reversal of 99999234440213 is 31204443299999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99999234440213 - 2¹² = 99999234436117 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 (99999234440813) 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, 199201661981 + ... + 199201662482.

It is an arithmetic number, because the mean of its divisors is an integer number (25099409441232).

Almost surely, 2^{99999234440213} is an apocalyptic number.

It is an amenable number.

99999234440213 is a deficient number, since it is larger than the sum of its proper divisors (398403324715).

99999234440213 is a wasteful number, since it uses less digits than its factorization.

99999234440213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398403324714.

The product of its (nonzero) digits is 136048896, while the sum is 68.

The spelling of 99999234440213 in words is "ninety-nine trillion, nine hundred ninety-nine billion, two hundred thirty-four million, four hundred forty thousand, two hundred thirteen".