1212303199 has 2 divisors, whose sum is σ = 1212303200. Its totient is φ = 1212303198.

The previous prime is 1212303193. The next prime is 1212303221. The reversal of 1212303199 is 9913032121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212303199 - 2²⁷ = 1078085471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212303199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212303193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606151599 + 606151600.

It is an arithmetic number, because the mean of its divisors is an integer number (606151600).

Almost surely, 2^1212303199 is an apocalyptic number.

1212303199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212303199 is an equidigital number, since it uses as much as digits as its factorization.

1212303199 is an evil number, because the sum of its binary digits is even.

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

The square root of 1212303199 is about 34818.1446806116. The cubic root of 1212303199 is about 1066.2779222833.

The spelling of 1212303199 in words is "one billion, two hundred twelve million, three hundred three thousand, one hundred ninety-nine".