999010000100101 has 32 divisors (see below), whose sum is σ = 1161137958382080. Its totient is φ = 849931590340800.

The previous prime is 999010000100051. The next prime is 999010000100131. The reversal of 999010000100101 is 101001000010999.

It is not a de Polignac number, because 999010000100101 - 2⁴⁵ = 963825628011269 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 (999010000100131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154534171 + ... + 160868983.

It is an arithmetic number, because the mean of its divisors is an integer number (36285561199440).

Almost surely, 2^{999010000100101} is an apocalyptic number.

It is an amenable number.

999010000100101 is a deficient number, since it is larger than the sum of its proper divisors (162127958281979).

999010000100101 is a wasteful number, since it uses less digits than its factorization.

999010000100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344017.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 999010000100101 in words is "nine hundred ninety-nine trillion, ten billion, one hundred thousand, one hundred one".