13031222032111 has 4 divisors (see below), whose sum is σ = 13055045107672. Its totient is φ = 13007398956552.

The previous prime is 13031222032093. The next prime is 13031222032121. The reversal of 13031222032111 is 11123022213031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13031222032111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031222032121) 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, 11911536960 + ... + 11911538053.

It is an arithmetic number, because the mean of its divisors is an integer number (3263761276918).

Almost surely, 2^{13031222032111} is an apocalyptic number.

13031222032111 is a deficient number, since it is larger than the sum of its proper divisors (23823075561).

13031222032111 is an equidigital number, since it uses as much as digits as its factorization.

13031222032111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23823075560.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13031222032111 its reverse (11123022213031), we get a palindrome (24154244245142).

The spelling of 13031222032111 in words is "thirteen trillion, thirty-one billion, two hundred twenty-two million, thirty-two thousand, one hundred eleven".