1112213023 has 4 divisors (see below), whose sum is σ = 1112423760. Its totient is φ = 1112002288.

The previous prime is 1112212993. The next prime is 1112213129. The reversal of 1112213023 is 3203122111.

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-1112213023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112212988 and 1112213006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112214023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97243 + ... + 108076.

It is an arithmetic number, because the mean of its divisors is an integer number (278105940).

Almost surely, 2^1112213023 is an apocalyptic number.

1112213023 is a deficient number, since it is larger than the sum of its proper divisors (210737).

1112213023 is an equidigital number, since it uses as much as digits as its factorization.

1112213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210736.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1112213023 is about 33349.8579157393. The cubic root of 1112213023 is about 1036.0864451726.

Adding to 1112213023 its reverse (3203122111), we get a palindrome (4315335134).

It can be divided in two parts, 111221 and 3023, that added together give a square (114244 = 338²).

The spelling of 1112213023 in words is "one billion, one hundred twelve million, two hundred thirteen thousand, twenty-three".