212034042431 has 2 divisors, whose sum is σ = 212034042432. Its totient is φ = 212034042430.

The previous prime is 212034042413. The next prime is 212034042433. The reversal of 212034042431 is 134240430212.

Together with previous prime (212034042413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212034042431 is a prime.

It is a super-2 number, since 2×212034042431² (a number of 23 digits) contains 22 as substring.

Together with 212034042433, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212034042431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212034042433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106017021215 + 106017021216.

It is an arithmetic number, because the mean of its divisors is an integer number (106017021216).

Almost surely, 2^212034042431 is an apocalyptic number.

212034042431 is a deficient number, since it is larger than the sum of its proper divisors (1).

212034042431 is an equidigital number, since it uses as much as digits as its factorization.

212034042431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212034042431 its reverse (134240430212), we get a palindrome (346274472643).

The spelling of 212034042431 in words is "two hundred twelve billion, thirty-four million, forty-two thousand, four hundred thirty-one".