1321315022 has 16 divisors (see below), whose sum is σ = 2026557792. Its totient is φ = 645925920.

The previous prime is 1321315013. The next prime is 1321315057. The reversal of 1321315022 is 2205131231.

It is a junction number, because it is equal to n+sod(n) for n = 1321314985 and 1321315003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12053 + ... + 52800.

It is an arithmetic number, because the mean of its divisors is an integer number (126659862).

Almost surely, 2^1321315022 is an apocalyptic number.

1321315022 is a deficient number, since it is larger than the sum of its proper divisors (705242770).

1321315022 is a wasteful number, since it uses less digits than its factorization.

1321315022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65083.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1321315022 is about 36349.8971387816. The cubic root of 1321315022 is about 1097.3254643986.

Adding to 1321315022 its reverse (2205131231), we get a palindrome (3526446253).

The spelling of 1321315022 in words is "one billion, three hundred twenty-one million, three hundred fifteen thousand, twenty-two".