211421024239 has 2 divisors, whose sum is σ = 211421024240. Its totient is φ = 211421024238.

The previous prime is 211421024233. The next prime is 211421024273. The reversal of 211421024239 is 932420124112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211421024239 - 2⁵ = 211421024207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211421024239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211421024233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710512119 + 105710512120.

It is an arithmetic number, because the mean of its divisors is an integer number (105710512120).

Almost surely, 2^211421024239 is an apocalyptic number.

211421024239 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421024239 is an equidigital number, since it uses as much as digits as its factorization.

211421024239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 211421024239 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-four thousand, two hundred thirty-nine".