1312313222233 has 32 divisors (see below), whose sum is σ = 1488328732800. Its totient is φ = 1148568153600.

The previous prime is 1312313222219. The next prime is 1312313222249. The reversal of 1312313222233 is 3322223132131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1312313222233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312313222203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21567573 + ... + 21628333.

It is an arithmetic number, because the mean of its divisors is an integer number (46510272900).

Almost surely, 2^{1312313222233} is an apocalyptic number.

1312313222233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1312313222233 is a deficient number, since it is larger than the sum of its proper divisors (176015510567).

1312313222233 is a wasteful number, since it uses less digits than its factorization.

1312313222233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61833.

The product of its digits is 7776, while the sum is 28.

Adding to 1312313222233 its reverse (3322223132131), we get a palindrome (4634536354364).

The spelling of 1312313222233 in words is "one trillion, three hundred twelve billion, three hundred thirteen million, two hundred twenty-two thousand, two hundred thirty-three".