1231302199 has 2 divisors, whose sum is σ = 1231302200. Its totient is φ = 1231302198.

The previous prime is 1231302161. The next prime is 1231302209. The reversal of 1231302199 is 9912031321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231302199 is a prime.

It is a super-2 number, since 2×1231302199² = 3032210210524471202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231302199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231300199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615651099 + 615651100.

It is an arithmetic number, because the mean of its divisors is an integer number (615651100).

Almost surely, 2^1231302199 is an apocalyptic number.

1231302199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231302199 is an equidigital number, since it uses as much as digits as its factorization.

1231302199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1231302199 is about 35089.9159161147. The cubic root of 1231302199 is about 1071.8192473774.

The spelling of 1231302199 in words is "one billion, two hundred thirty-one million, three hundred two thousand, one hundred ninety-nine".