99911013 has 16 divisors (see below), whose sum is σ = 136343040. Its totient is φ = 65057904.

The previous prime is 99910997. The next prime is 99911029. The reversal of 99911013 is 31011999.

It is an interprime number because it is at equal distance from previous prime (99910997) and next prime (99911029).

It is not a de Polignac number, because 99911013 - 2⁴ = 99910997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99911093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27120 + ... + 30582.

It is an arithmetic number, because the mean of its divisors is an integer number (8521440).

Almost surely, 2^99911013 is an apocalyptic number.

It is an amenable number.

99911013 is a deficient number, since it is larger than the sum of its proper divisors (36432027).

99911013 is a wasteful number, since it uses less digits than its factorization.

99911013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 99911013 is about 9995.5496597236. The cubic root of 99911013 is about 464.0211621467.

The spelling of 99911013 in words is "ninety-nine million, nine hundred eleven thousand, thirteen".