111131111223013 has 32 divisors (see below), whose sum is σ = 135086914944000. Its totient is φ = 89246160267264.

The previous prime is 111131111222981. The next prime is 111131111223019. The reversal of 111131111223013 is 310322111131111.

It is a happy number.

It is not a de Polignac number, because 111131111223013 - 2⁵ = 111131111222981 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 (111131111223019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171002713 + ... + 171651361.

It is an arithmetic number, because the mean of its divisors is an integer number (4221466092000).

Almost surely, 2^{111131111223013} is an apocalyptic number.

It is an amenable number.

111131111223013 is a deficient number, since it is larger than the sum of its proper divisors (23955803720987).

111131111223013 is a wasteful number, since it uses less digits than its factorization.

111131111223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655189.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 111131111223013 its reverse (310322111131111), we get a palindrome (421453222354124).

The spelling of 111131111223013 in words is "one hundred eleven trillion, one hundred thirty-one billion, one hundred eleven million, two hundred twenty-three thousand, thirteen".