1321331298 has 32 divisors (see below), whose sum is σ = 3042244224. Its totient is φ = 374765952.

The previous prime is 1321331293. The next prime is 1321331303. The reversal of 1321331298 is 8921331231.

It is an interprime number because it is at equal distance from previous prime (1321331293) and next prime (1321331303).

It is not an unprimeable number, because it can be changed into a prime (1321331293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109065 + ... + 120572.

It is an arithmetic number, because the mean of its divisors is an integer number (95070132).

Almost surely, 2^1321331298 is an apocalyptic number.

1321331298 is an abundant number, since it is smaller than the sum of its proper divisors (1720912926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321331298 is a wasteful number, since it uses less digits than its factorization.

1321331298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229786.

The product of its digits is 7776, while the sum is 33.

The square root of 1321331298 is about 36350.1210176803. The cubic root of 1321331298 is about 1097.3299700100.

The spelling of 1321331298 in words is "one billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred ninety-eight".