99923101 has 2 divisors, whose sum is σ = 99923102. Its totient is φ = 99923100.

The previous prime is 99923077. The next prime is 99923107. The reversal of 99923101 is 10132999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 34798201 = 8070^2 + 5899^2 .

It is an emirp because it is prime and its reverse (10132999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99923101 is a prime.

It is a super-2 number, since 2×99923101² = 19969252226912402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99923107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49961550 + 49961551.

It is an arithmetic number, because the mean of its divisors is an integer number (49961551).

Almost surely, 2^99923101 is an apocalyptic number.

It is an amenable number.

99923101 is a deficient number, since it is larger than the sum of its proper divisors (1).

99923101 is an equidigital number, since it uses as much as digits as its factorization.

99923101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 99923101 is about 9996.1543105336. The cubic root of 99923101 is about 464.0398750041.

The spelling of 99923101 in words is "ninety-nine million, nine hundred twenty-three thousand, one hundred one".