1312011013233 has 32 divisors (see below), whose sum is σ = 1820133216000. Its totient is φ = 839636582400.

The previous prime is 1312011013189. The next prime is 1312011013279. The reversal of 1312011013233 is 3323101102131.

It is a happy number.

It is not a de Polignac number, because 1312011013233 - 2¹⁸ = 1312010751089 is a prime.

It is a super-2 number, since 2×1312011013233² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312011015233) 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, 23535153 + ... + 23590833.

It is an arithmetic number, because the mean of its divisors is an integer number (56879163000).

Almost surely, 2^{1312011013233} is an apocalyptic number.

It is an amenable number.

1312011013233 is a deficient number, since it is larger than the sum of its proper divisors (508122202767).

1312011013233 is a wasteful number, since it uses less digits than its factorization.

1312011013233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57273.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1312011013233 its reverse (3323101102131), we get a palindrome (4635112115364).

The spelling of 1312011013233 in words is "one trillion, three hundred twelve billion, eleven million, thirteen thousand, two hundred thirty-three".