239994000031 has 2 divisors, whose sum is σ = 239994000032. Its totient is φ = 239994000030.

The previous prime is 239994000011. The next prime is 239994000041. The reversal of 239994000031 is 130000499932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239994000031 - 2¹⁵ = 239993967263 is a prime.

It is a super-2 number, since 2×239994000031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239994000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119997000015 + 119997000016.

It is an arithmetic number, because the mean of its divisors is an integer number (119997000016).

Almost surely, 2^239994000031 is an apocalyptic number.

239994000031 is a deficient number, since it is larger than the sum of its proper divisors (1).

239994000031 is an equidigital number, since it uses as much as digits as its factorization.

239994000031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 40.

Adding to 239994000031 its reverse (130000499932), we get a palindrome (369994499963).

The spelling of 239994000031 in words is "two hundred thirty-nine billion, nine hundred ninety-four million, thirty-one", and thus it is an aban number.