1313320532 has 6 divisors (see below), whose sum is σ = 2298310938. Its totient is φ = 656660264.

The previous prime is 1313320529. The next prime is 1313320553. The reversal of 1313320532 is 2350233131.

It can be written as a sum of positive squares in only one way, i.e., 1310874436 + 2446096 = 36206^2 + 1564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313320498 and 1313320507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164165063 + ... + 164165070.

It is an arithmetic number, because the mean of its divisors is an integer number (383051823).

Almost surely, 2^1313320532 is an apocalyptic number.

It is an amenable number.

1313320532 is a deficient number, since it is larger than the sum of its proper divisors (984990406).

1313320532 is a wasteful number, since it uses less digits than its factorization.

1313320532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328330137 (or 328330135 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1313320532 is about 36239.7645135837. The cubic root of 1313320532 is about 1095.1078984326.

Adding to 1313320532 its reverse (2350233131), we get a palindrome (3663553663).

The spelling of 1313320532 in words is "one billion, three hundred thirteen million, three hundred twenty thousand, five hundred thirty-two".