99690230131 has 2 divisors, whose sum is σ = 99690230132. Its totient is φ = 99690230130.

The previous prime is 99690230117. The next prime is 99690230137. The reversal of 99690230131 is 13103209699.

It is a strong prime.

It is an emirp because it is prime and its reverse (13103209699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99690230131 - 2⁵ = 99690230099 is a prime.

It is a super-2 number, since 2×99690230131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99690230137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49845115065 + 49845115066.

It is an arithmetic number, because the mean of its divisors is an integer number (49845115066).

Almost surely, 2^99690230131 is an apocalyptic number.

99690230131 is a deficient number, since it is larger than the sum of its proper divisors (1).

99690230131 is an equidigital number, since it uses as much as digits as its factorization.

99690230131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 43.

The spelling of 99690230131 in words is "ninety-nine billion, six hundred ninety million, two hundred thirty thousand, one hundred thirty-one".