231033211999 has 2 divisors, whose sum is σ = 231033212000. Its totient is φ = 231033211998.

The previous prime is 231033211993. The next prime is 231033212023. The reversal of 231033211999 is 999112330132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231033211999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231033211993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115516605999 + 115516606000.

It is an arithmetic number, because the mean of its divisors is an integer number (115516606000).

Almost surely, 2^231033211999 is an apocalyptic number.

231033211999 is a deficient number, since it is larger than the sum of its proper divisors (1).

231033211999 is an equidigital number, since it uses as much as digits as its factorization.

231033211999 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 231033211999 in words is "two hundred thirty-one billion, thirty-three million, two hundred eleven thousand, nine hundred ninety-nine".