111111233013 has 72 divisors (see below), whose sum is σ = 183984190208. Its totient is φ = 64494144000.

The previous prime is 111111232957. The next prime is 111111233033. The reversal of 111111233013 is 310332111111.

It is a de Polignac number, because none of the positive numbers 2^k-111111233013 is a prime.

It is a super-2 number, since 2×111111233013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111233033) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3257658 + ... + 3291588.

Almost surely, 2^111111233013 is an apocalyptic number.

It is an amenable number.

111111233013 is a deficient number, since it is larger than the sum of its proper divisors (72872957195).

111111233013 is a wasteful number, since it uses less digits than its factorization.

111111233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34087 (or 34073 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111111233013 its reverse (310332111111), we get a palindrome (421443344124).

The spelling of 111111233013 in words is "one hundred eleven billion, one hundred eleven million, two hundred thirty-three thousand, thirteen".