1321013322 has 24 divisors (see below), whose sum is σ = 3030560676. Its totient is φ = 414435456.

The previous prime is 1321013263. The next prime is 1321013357. The reversal of 1321013322 is 2233101231.

It can be written as a sum of positive squares in 2 ways, for example, as 1319215041 + 1798281 = 36321^2 + 1341^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1321013295 and 1321013304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2158213 + ... + 2158824.

Almost surely, 2^1321013322 is an apocalyptic number.

1321013322 is an abundant number, since it is smaller than the sum of its proper divisors (1709547354).

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

1321013322 is a wasteful number, since it uses less digits than its factorization.

1321013322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317062 (or 4317059 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1321013322 is about 36345.7469588947. The cubic root of 1321013322 is about 1097.2419394537.

Adding to 1321013322 its reverse (2233101231), we get a palindrome (3554114553).

The spelling of 1321013322 in words is "one billion, three hundred twenty-one million, thirteen thousand, three hundred twenty-two".