99990000010031 has 2 divisors, whose sum is σ = 99990000010032. Its totient is φ = 99990000010030.

The previous prime is 99990000009989. The next prime is 99990000010039. The reversal of 99990000010031 is 13001000009999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99990000010031 - 2¹⁰ = 99990000009007 is a prime.

It is a super-2 number, since 2×99990000010031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99990000010039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49995000005015 + 49995000005016.

It is an arithmetic number, because the mean of its divisors is an integer number (49995000005016).

Almost surely, 2^{99990000010031} is an apocalyptic number.

99990000010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

99990000010031 is an equidigital number, since it uses as much as digits as its factorization.

99990000010031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 41.

The spelling of 99990000010031 in words is "ninety-nine trillion, nine hundred ninety billion, ten thousand, thirty-one".