13131223122111 has 8 divisors (see below), whose sum is σ = 17531989376640. Its totient is φ = 8742302807832.

The previous prime is 13131223122091. The next prime is 13131223122133. The reversal of 13131223122111 is 11122132213131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13131223122111 - 2¹⁵ = 13131223089343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131223122191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961482475 + ... + 2961486908.

It is an arithmetic number, because the mean of its divisors is an integer number (2191498672080).

Almost surely, 2^{13131223122111} is an apocalyptic number.

13131223122111 is a deficient number, since it is larger than the sum of its proper divisors (4400766254529).

13131223122111 is an equidigital number, since it uses as much as digits as its factorization.

13131223122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922970125.

The product of its digits is 432, while the sum is 24.

Adding to 13131223122111 its reverse (11122132213131), we get a palindrome (24253355335242).

The spelling of 13131223122111 in words is "thirteen trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred eleven".