212431444051 has 2 divisors, whose sum is σ = 212431444052. Its totient is φ = 212431444050.

The previous prime is 212431444033. The next prime is 212431444133. The reversal of 212431444051 is 150444134212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212431444051 - 2⁵ = 212431444019 is a prime.

It is not a weakly prime, because it can be changed into another prime (212431444031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106215722025 + 106215722026.

It is an arithmetic number, because the mean of its divisors is an integer number (106215722026).

Almost surely, 2^212431444051 is an apocalyptic number.

212431444051 is a deficient number, since it is larger than the sum of its proper divisors (1).

212431444051 is an equidigital number, since it uses as much as digits as its factorization.

212431444051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 212431444051 its reverse (150444134212), we get a palindrome (362875578263).

The spelling of 212431444051 in words is "two hundred twelve billion, four hundred thirty-one million, four hundred forty-four thousand, fifty-one".