1213119983 has 6 divisors (see below), whose sum is σ = 1288677936. Its totient is φ = 1141759712.

The previous prime is 1213119979. The next prime is 1213119991. The reversal of 1213119983 is 3899113121.

It is not a de Polignac number, because 1213119983 - 2² = 1213119979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213115983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2098535 + ... + 2099112.

It is an arithmetic number, because the mean of its divisors is an integer number (214779656).

Almost surely, 2^1213119983 is an apocalyptic number.

1213119983 is a deficient number, since it is larger than the sum of its proper divisors (75557953).

1213119983 is an equidigital number, since it uses as much as digits as its factorization.

1213119983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197681 (or 4197664 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The square root of 1213119983 is about 34829.8719922999. The cubic root of 1213119983 is about 1066.5173352255.

The spelling of 1213119983 in words is "one billion, two hundred thirteen million, one hundred nineteen thousand, nine hundred eighty-three".