211423022999 has 2 divisors, whose sum is σ = 211423023000. Its totient is φ = 211423022998.

The previous prime is 211423022983. The next prime is 211423023029. The reversal of 211423022999 is 999220324112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211423022999 - 2⁴ = 211423022983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211423022929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105711511499 + 105711511500.

It is an arithmetic number, because the mean of its divisors is an integer number (105711511500).

Almost surely, 2^211423022999 is an apocalyptic number.

211423022999 is a deficient number, since it is larger than the sum of its proper divisors (1).

211423022999 is an equidigital number, since it uses as much as digits as its factorization.

211423022999 is an evil number, because the sum of its binary digits is even.

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

The spelling of 211423022999 in words is "two hundred eleven billion, four hundred twenty-three million, twenty-two thousand, nine hundred ninety-nine".