111122311112031 has 4 divisors (see below), whose sum is σ = 148163081482712. Its totient is φ = 74081540741352.

The previous prime is 111122311112027. The next prime is 111122311112053. The reversal of 111122311112031 is 130211113221111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111122311112031 - 2² = 111122311112027 is a prime.

It is a super-2 number, since 2×111122311112031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111122311111989 and 111122311112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122315112031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18520385185336 + ... + 18520385185341.

It is an arithmetic number, because the mean of its divisors is an integer number (37040770370678).

Almost surely, 2^{111122311112031} is an apocalyptic number.

111122311112031 is a deficient number, since it is larger than the sum of its proper divisors (37040770370681).

111122311112031 is an equidigital number, since it uses as much as digits as its factorization.

111122311112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040770370680.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 111122311112031 its reverse (130211113221111), we get a palindrome (241333424333142).

The spelling of 111122311112031 in words is "one hundred eleven trillion, one hundred twenty-two billion, three hundred eleven million, one hundred twelve thousand, thirty-one".