999862240231 has 2 divisors, whose sum is σ = 999862240232. Its totient is φ = 999862240230.

The previous prime is 999862240219. The next prime is 999862240327. The reversal of 999862240231 is 132042268999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999862240231 - 2⁷ = 999862240103 is a prime.

It is a super-2 number, since 2×999862240231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999862240831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499931120115 + 499931120116.

It is an arithmetic number, because the mean of its divisors is an integer number (499931120116).

Almost surely, 2^999862240231 is an apocalyptic number.

999862240231 is the 577311-st hex number.

999862240231 is a deficient number, since it is larger than the sum of its proper divisors (1).

999862240231 is an equidigital number, since it uses as much as digits as its factorization.

999862240231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 999862240231 in words is "nine hundred ninety-nine billion, eight hundred sixty-two million, two hundred forty thousand, two hundred thirty-one".