1312233101331 has 4 divisors (see below), whose sum is σ = 1749644135112. Its totient is φ = 874822067552.

The previous prime is 1312233101299. The next prime is 1312233101341. The reversal of 1312233101331 is 1331013322131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312233101331 - 2⁵ = 1312233101299 is a prime.

It is a super-2 number, since 2×1312233101331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312233101341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218705516886 + ... + 218705516891.

It is an arithmetic number, because the mean of its divisors is an integer number (437411033778).

Almost surely, 2^{1312233101331} is an apocalyptic number.

1312233101331 is a deficient number, since it is larger than the sum of its proper divisors (437411033781).

1312233101331 is an equidigital number, since it uses as much as digits as its factorization.

1312233101331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437411033780.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1312233101331 its reverse (1331013322131), we get a palindrome (2643246423462).

The spelling of 1312233101331 in words is "one trillion, three hundred twelve billion, two hundred thirty-three million, one hundred one thousand, three hundred thirty-one".