12031998263 has 2 divisors, whose sum is σ = 12031998264. Its totient is φ = 12031998262.

The previous prime is 12031998191. The next prime is 12031998301. The reversal of 12031998263 is 36289913021.

It is a strong prime.

It is an emirp because it is prime and its reverse (36289913021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031998263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031991263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015999131 + 6015999132.

It is an arithmetic number, because the mean of its divisors is an integer number (6015999132).

Almost surely, 2^12031998263 is an apocalyptic number.

12031998263 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031998263 is an equidigital number, since it uses as much as digits as its factorization.

12031998263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 12031998263 in words is "twelve billion, thirty-one million, nine hundred ninety-eight thousand, two hundred sixty-three".