1313322131231 has 6 divisors (see below), whose sum is σ = 1443568954296. Its totient is φ = 1193929210100.

The previous prime is 1313322131197. The next prime is 1313322131309. The reversal of 1313322131231 is 1321312233131.

It is not a de Polignac number, because 1313322131231 - 2²⁶ = 1313255022367 is a prime.

It is a super-2 number, since 2×1313322131231² (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 1313322131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313322131831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5426950835 + ... + 5426951076.

It is an arithmetic number, because the mean of its divisors is an integer number (240594825716).

Almost surely, 2^{1313322131231} is an apocalyptic number.

1313322131231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313322131231 is a deficient number, since it is larger than the sum of its proper divisors (130246823065).

1313322131231 is a wasteful number, since it uses less digits than its factorization.

1313322131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853901933 (or 10853901922 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

Adding to 1313322131231 its reverse (1321312233131), we get a palindrome (2634634364362).

The spelling of 1313322131231 in words is "one trillion, three hundred thirteen billion, three hundred twenty-two million, one hundred thirty-one thousand, two hundred thirty-one".