1213113199 has 2 divisors, whose sum is σ = 1213113200. Its totient is φ = 1213113198.

The previous prime is 1213113179. The next prime is 1213113203. The reversal of 1213113199 is 9913113121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213113199 - 2¹⁵ = 1213080431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213113199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213113179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606556599 + 606556600.

It is an arithmetic number, because the mean of its divisors is an integer number (606556600).

Almost surely, 2^1213113199 is an apocalyptic number.

1213113199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213113199 is an equidigital number, since it uses as much as digits as its factorization.

1213113199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 31.

The square root of 1213113199 is about 34829.7746044961. The cubic root of 1213113199 is about 1066.5153471652.

The spelling of 1213113199 in words is "one billion, two hundred thirteen million, one hundred thirteen thousand, one hundred ninety-nine".