1112123033231 has 4 divisors (see below), whose sum is σ = 1270997752272. Its totient is φ = 953248314192.

The previous prime is 1112123033191. The next prime is 1112123033233. The reversal of 1112123033231 is 1323303212111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112123033231 is a prime.

It is a super-2 number, since 2×1112123033231² (a number of 25 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 = 1112123033197 and 1112123033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112123033233) 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, 79437359510 + ... + 79437359523.

It is an arithmetic number, because the mean of its divisors is an integer number (317749438068).

Almost surely, 2^{1112123033231} is an apocalyptic number.

1112123033231 is a deficient number, since it is larger than the sum of its proper divisors (158874719041).

1112123033231 is an equidigital number, since it uses as much as digits as its factorization.

1112123033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158874719040.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1112123033231 its reverse (1323303212111), we get a palindrome (2435426245342).

The spelling of 1112123033231 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, thirty-three thousand, two hundred thirty-one".