111122120913 has 16 divisors (see below), whose sum is σ = 149595403776. Its totient is φ = 73366191360.

The previous prime is 111122120911. The next prime is 111122120947. The reversal of 111122120913 is 319021221111.

It is not a de Polignac number, because 111122120913 - 2¹ = 111122120911 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111122120911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286848 + ... + 551838.

It is an arithmetic number, because the mean of its divisors is an integer number (9349712736).

Almost surely, 2^111122120913 is an apocalyptic number.

It is an amenable number.

111122120913 is a deficient number, since it is larger than the sum of its proper divisors (38473282863).

111122120913 is a wasteful number, since it uses less digits than its factorization.

111122120913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266344.

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 111122120913 in words is "one hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, nine hundred thirteen".