1313220332 has 12 divisors (see below), whose sum is σ = 2301864600. Its totient is φ = 655544736.

The previous prime is 1313220313. The next prime is 1313220343. The reversal of 1313220332 is 2330223131.

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, 263582 + ... + 268517.

It is an arithmetic number, because the mean of its divisors is an integer number (191822050).

Almost surely, 2^1313220332 is an apocalyptic number.

It is an amenable number.

1313220332 is a deficient number, since it is larger than the sum of its proper divisors (988644268).

1313220332 is a wasteful number, since it uses less digits than its factorization.

1313220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532720 (or 532718 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1313220332 is about 36238.3820278996. The cubic root of 1313220332 is about 1095.0800472469.

Adding to 1313220332 its reverse (2330223131), we get a palindrome (3643443463).

The spelling of 1313220332 in words is "one billion, three hundred thirteen million, two hundred twenty thousand, three hundred thirty-two".