1313513212 has 12 divisors (see below), whose sum is σ = 2507616216. Its totient is φ = 597051440.

The previous prime is 1313513207. The next prime is 1313513219. The reversal of 1313513212 is 2123153131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313513219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14926243 + ... + 14926330.

It is an arithmetic number, because the mean of its divisors is an integer number (208968018).

Almost surely, 2^1313513212 is an apocalyptic number.

It is an amenable number.

1313513212 is a deficient number, since it is larger than the sum of its proper divisors (1194103004).

1313513212 is a wasteful number, since it uses less digits than its factorization.

1313513212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29852588 (or 29852586 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 1313513212 is about 36242.4228218810. The cubic root of 1313513212 is about 1095.1614510033.

Adding to 1313513212 its reverse (2123153131), we get a palindrome (3436666343).

The spelling of 1313513212 in words is "one billion, three hundred thirteen million, five hundred thirteen thousand, two hundred twelve".