1213431022 has 12 divisors (see below), whose sum is σ = 1829836008. Its totient is φ = 603502700.

The previous prime is 1213430989. The next prime is 1213431041. The reversal of 1213431022 is 2201343121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64647 + ... + 81277.

It is an arithmetic number, because the mean of its divisors is an integer number (152486334).

Almost surely, 2^1213431022 is an apocalyptic number.

1213431022 is a deficient number, since it is larger than the sum of its proper divisors (616404986).

1213431022 is an equidigital number, since it uses as much as digits as its factorization.

1213431022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17015 (or 16824 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1213431022 is about 34834.3368244610. The cubic root of 1213431022 is about 1066.6084776634.

Adding to 1213431022 its reverse (2201343121), we get a palindrome (3414774143).

The spelling of 1213431022 in words is "one billion, two hundred thirteen million, four hundred thirty-one thousand, twenty-two".