211423131239 has 4 divisors (see below), whose sum is σ = 211432480440. Its totient is φ = 211413782040.

The previous prime is 211423131223. The next prime is 211423131247. The reversal of 211423131239 is 932131324112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211423131239 - 2⁴ = 211423131223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423137239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640597 + ... + 4685934.

It is an arithmetic number, because the mean of its divisors is an integer number (52858120110).

Almost surely, 2^211423131239 is an apocalyptic number.

211423131239 is a deficient number, since it is larger than the sum of its proper divisors (9349201).

211423131239 is an equidigital number, since it uses as much as digits as its factorization.

211423131239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349200.

The product of its digits is 7776, while the sum is 32.

The spelling of 211423131239 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty-nine".