13143122312231 has 4 divisors (see below), whose sum is σ = 13144210961952. Its totient is φ = 13142033662512.

The previous prime is 13143122312197. The next prime is 13143122312251. The reversal of 13143122312231 is 13221322134131.

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 13143122312231 - 2³⁸ = 12868244405287 is a prime.

It is a super-2 number, since 2×13143122312231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13143122312194 and 13143122312203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143122312251) 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, 544306751 + ... + 544330896.

It is an arithmetic number, because the mean of its divisors is an integer number (3286052740488).

Almost surely, 2^{13143122312231} is an apocalyptic number.

13143122312231 is a deficient number, since it is larger than the sum of its proper divisors (1088649721).

13143122312231 is a wasteful number, since it uses less digits than its factorization.

13143122312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088649720.

The product of its digits is 5184, while the sum is 29.

Adding to 13143122312231 its reverse (13221322134131), we get a palindrome (26364444446362).

The spelling of 13143122312231 in words is "thirteen trillion, one hundred forty-three billion, one hundred twenty-two million, three hundred twelve thousand, two hundred thirty-one".