1112111123031 has 20 divisors (see below), whose sum is σ = 1661347545000. Its totient is φ = 741387000816.

The previous prime is 1112111122999. The next prime is 1112111123041. The reversal of 1112111123031 is 1303211112111.

It is not a de Polignac number, because 1112111123031 - 2⁵ = 1112111122999 is a prime.

It is a super-2 number, since 2×1112111123031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112111122995 and 1112111123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111123041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3127945 + ... + 3465293.

It is an arithmetic number, because the mean of its divisors is an integer number (83067377250).

Almost surely, 2^{1112111123031} is an apocalyptic number.

1112111123031 is a deficient number, since it is larger than the sum of its proper divisors (549236421969).

1112111123031 is an equidigital number, since it uses as much as digits as its factorization.

1112111123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378060 (or 378051 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1112111123031 its reverse (1303211112111), we get a palindrome (2415322235142).

The spelling of 1112111123031 in words is "one trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty-three thousand, thirty-one".