13031222121323 has 4 divisors (see below), whose sum is σ = 14892825281520. Its totient is φ = 11169618961128.

The previous prime is 13031222121317. The next prime is 13031222121331. The reversal of 13031222121323 is 32312122213031.

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 13031222121323 - 2¹² = 13031222117227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13031222121292 and 13031222121301.

It is not an unprimeable number, because it can be changed into a prime (13031222121523) 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, 930801580088 + ... + 930801580101.

It is an arithmetic number, because the mean of its divisors is an integer number (3723206320380).

Almost surely, 2^{13031222121323} is an apocalyptic number.

13031222121323 is a deficient number, since it is larger than the sum of its proper divisors (1861603160197).

13031222121323 is an equidigital number, since it uses as much as digits as its factorization.

13031222121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861603160196.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13031222121323 its reverse (32312122213031), we get a palindrome (45343344334354).

The spelling of 13031222121323 in words is "thirteen trillion, thirty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred twenty-three".