1312232312 has 32 divisors (see below), whose sum is σ = 2606904000. Its totient is φ = 617109504.

The previous prime is 1312232297. The next prime is 1312232357. The reversal of 1312232312 is 2132322131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322064 + ... + 326112.

It is an arithmetic number, because the mean of its divisors is an integer number (81465750).

Almost surely, 2^1312232312 is an apocalyptic number.

It is an amenable number.

1312232312 is a deficient number, since it is larger than the sum of its proper divisors (1294671688).

1312232312 is a wasteful number, since it uses less digits than its factorization.

1312232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455 (or 6451 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1312232312 is about 36224.7472316923. The cubic root of 1312232312 is about 1094.8053453257.

Adding to 1312232312 its reverse (2132322131), we get a palindrome (3444554443).

The spelling of 1312232312 in words is "one billion, three hundred twelve million, two hundred thirty-two thousand, three hundred twelve".