1313221324 has 12 divisors (see below), whose sum is σ = 2298520224. Its totient is φ = 656501264.

The previous prime is 1313221303. The next prime is 1313221337. The reversal of 1313221324 is 4231223131.

It is a junction number, because it is equal to n+sod(n) for n = 1313221295 and 1313221304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3534 + ... + 51370.

It is an arithmetic number, because the mean of its divisors is an integer number (191543352).

Almost surely, 2^1313221324 is an apocalyptic number.

It is an amenable number.

1313221324 is a deficient number, since it is larger than the sum of its proper divisors (985298900).

1313221324 is a wasteful number, since it uses less digits than its factorization.

1313221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54704 (or 54702 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1313221324 is about 36238.3957150424. The cubic root of 1313221324 is about 1095.0803229861.

Adding to 1313221324 its reverse (4231223131), we get a palindrome (5544444455).

The spelling of 1313221324 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-four".