1313331212 has 12 divisors (see below), whose sum is σ = 2299124520. Its totient is φ = 656438496.

The previous prime is 1313331203. The next prime is 1313331263. The reversal of 1313331212 is 2121333131.

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, 43418 + ... + 67169.

It is an arithmetic number, because the mean of its divisors is an integer number (191593710).

Almost surely, 2^1313331212 is an apocalyptic number.

It is an amenable number.

1313331212 is a deficient number, since it is larger than the sum of its proper divisors (985793308).

1313331212 is a wasteful number, since it uses less digits than its factorization.

1313331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113560 (or 113558 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 1313331212 is about 36239.9118652350. The cubic root of 1313331212 is about 1095.1108669186.

Adding to 1313331212 its reverse (2121333131), we get a palindrome (3434664343).

The spelling of 1313331212 in words is "one billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred twelve".