1318921299 has 10 divisors (see below), whose sum is σ = 1970240580. Its totient is φ = 879280812.

The previous prime is 1318921259. The next prime is 1318921339. The reversal of 1318921299 is 9921298131.

It is an interprime number because it is at equal distance from previous prime (1318921259) and next prime (1318921339).

It is not a de Polignac number, because 1318921299 - 2¹⁵ = 1318888531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1318921259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8141409 + ... + 8141570.

It is an arithmetic number, because the mean of its divisors is an integer number (197024058).

Almost surely, 2^1318921299 is an apocalyptic number.

1318921299 is a deficient number, since it is larger than the sum of its proper divisors (651319281).

1318921299 is an equidigital number, since it uses as much as digits as its factorization.

1318921299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16282991 (or 16282982 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 1318921299 is about 36316.9560811475. The cubic root of 1318921299 is about 1096.6624176236.

The spelling of 1318921299 in words is "one billion, three hundred eighteen million, nine hundred twenty-one thousand, two hundred ninety-nine".