1313312033231 has 4 divisors (see below), whose sum is σ = 1432704036264. Its totient is φ = 1193920030200.

The previous prime is 1313312033227. The next prime is 1313312033261. The reversal of 1313312033231 is 1323302133131.

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 1313312033231 - 2² = 1313312033227 is a prime.

It is a super-2 number, since 2×1313312033231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313312033231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313312033261) 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, 59696001500 + ... + 59696001521.

It is an arithmetic number, because the mean of its divisors is an integer number (358176009066).

Almost surely, 2^{1313312033231} is an apocalyptic number.

1313312033231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313312033231 is a deficient number, since it is larger than the sum of its proper divisors (119392003033).

1313312033231 is a wasteful number, since it uses less digits than its factorization.

1313312033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119392003032.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1313312033231 its reverse (1323302133131), we get a palindrome (2636614166362).

The spelling of 1313312033231 in words is "one trillion, three hundred thirteen billion, three hundred twelve million, thirty-three thousand, two hundred thirty-one".