1321018299 has 6 divisors (see below), whose sum is σ = 1908137556. Its totient is φ = 880678860.

The previous prime is 1321018273. The next prime is 1321018333. The reversal of 1321018299 is 9928101231.

It is not a de Polignac number, because 1321018299 - 2⁵ = 1321018267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321018219) 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, 73389897 + ... + 73389914.

It is an arithmetic number, because the mean of its divisors is an integer number (318022926).

Almost surely, 2^1321018299 is an apocalyptic number.

1321018299 is a deficient number, since it is larger than the sum of its proper divisors (587119257).

1321018299 is a wasteful number, since it uses less digits than its factorization.

1321018299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146779817 (or 146779814 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1321018299 is about 36345.8154262633. The cubic root of 1321018299 is about 1097.2433174278.

The spelling of 1321018299 in words is "one billion, three hundred twenty-one million, eighteen thousand, two hundred ninety-nine".