1312133322 has 16 divisors (see below), whose sum is σ = 2629751040. Its totient is φ = 436463712.

The previous prime is 1312133299. The next prime is 1312133327. The reversal of 1312133322 is 2233312131.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1312133327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225403 + ... + 231150.

It is an arithmetic number, because the mean of its divisors is an integer number (164359440).

Almost surely, 2^1312133322 is an apocalyptic number.

1312133322 is an abundant number, since it is smaller than the sum of its proper divisors (1317617718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312133322 is a wasteful number, since it uses less digits than its factorization.

1312133322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457037.

The product of its digits is 648, while the sum is 21.

The square root of 1312133322 is about 36223.3808747886. The cubic root of 1312133322 is about 1094.7778152648. Note that the first 3 decimals are identical.

Adding to 1312133322 its reverse (2233312131), we get a palindrome (3545445453).

The spelling of 1312133322 in words is "one billion, three hundred twelve million, one hundred thirty-three thousand, three hundred twenty-two".