111133112031 has 12 divisors (see below), whose sum is σ = 162459650808. Its totient is φ = 73196105424.

The previous prime is 111133111997. The next prime is 111133112039. The reversal of 111133112031 is 130211331111.

It is not a de Polignac number, because 111133112031 - 2¹⁰ = 111133111007 is a prime.

It is a super-2 number, since 2×111133112031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111133111995 and 111133112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111133112039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74385540 + ... + 74387033.

It is an arithmetic number, because the mean of its divisors is an integer number (13538304234).

Almost surely, 2^111133112031 is an apocalyptic number.

111133112031 is a deficient number, since it is larger than the sum of its proper divisors (51326538777).

111133112031 is a wasteful number, since it uses less digits than its factorization.

111133112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148772662 (or 148772659 counting only the distinct ones).

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

Adding to 111133112031 its reverse (130211331111), we get a palindrome (241344443142).

The spelling of 111133112031 in words is "one hundred eleven billion, one hundred thirty-three million, one hundred twelve thousand, thirty-one".