99100023 has 16 divisors (see below), whose sum is σ = 148043136. Its totient is φ = 58436640.

The previous prime is 99100019. The next prime is 99100033. The reversal of 99100023 is 32000199.

It is a happy number.

It is not a de Polignac number, because 99100023 - 2² = 99100019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99099966 and 99100002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99100033) 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, 39361 + ... + 41802.

It is an arithmetic number, because the mean of its divisors is an integer number (9252696).

Almost surely, 2^99100023 is an apocalyptic number.

99100023 is a deficient number, since it is larger than the sum of its proper divisors (48943113).

99100023 is a wasteful number, since it uses less digits than its factorization.

99100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81214.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 99100023 is about 9954.8994470060. The cubic root of 99100023 is about 462.7622440686.

The spelling of 99100023 in words is "ninety-nine million, one hundred thousand, twenty-three".