1313332123231 has 16 divisors (see below), whose sum is σ = 1358572669344. Its totient is φ = 1268827305984.

The previous prime is 1313332123211. The next prime is 1313332123247. The reversal of 1313332123231 is 1323212333131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1313332123231 - 2²³ = 1313323734623 is a prime.

It is a super-2 number, since 2×1313332123231² (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 1313332123231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313332123211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229391 + ... + 2034223.

It is an arithmetic number, because the mean of its divisors is an integer number (84910791834).

Almost surely, 2^{1313332123231} is an apocalyptic number.

1313332123231 is a deficient number, since it is larger than the sum of its proper divisors (45240546113).

1313332123231 is a wasteful number, since it uses less digits than its factorization.

1313332123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805290.

The product of its digits is 5832, while the sum is 28.

Adding to 1313332123231 its reverse (1323212333131), we get a palindrome (2636544456362).

The spelling of 1313332123231 in words is "one trillion, three hundred thirteen billion, three hundred thirty-two million, one hundred twenty-three thousand, two hundred thirty-one".