202231212439 has 2 divisors, whose sum is σ = 202231212440. Its totient is φ = 202231212438.

The previous prime is 202231212371. The next prime is 202231212457. The reversal of 202231212439 is 934212132202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202231212439 - 2³¹ = 200083728791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202231212439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202231213439) 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, 101115606219 + 101115606220.

It is an arithmetic number, because the mean of its divisors is an integer number (101115606220).

Almost surely, 2^202231212439 is an apocalyptic number.

202231212439 is a deficient number, since it is larger than the sum of its proper divisors (1).

202231212439 is an equidigital number, since it uses as much as digits as its factorization.

202231212439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 202231212439 in words is "two hundred two billion, two hundred thirty-one million, two hundred twelve thousand, four hundred thirty-nine".