1021112243 has 8 divisors (see below), whose sum is σ = 1056680400. Its totient is φ = 985567968.

The previous prime is 1021112237. The next prime is 1021112251. The reversal of 1021112243 is 3422111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021112243 - 2¹⁰ = 1021111219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021112843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154613 + ... + 161081.

It is an arithmetic number, because the mean of its divisors is an integer number (132085050).

Almost surely, 2^1021112243 is an apocalyptic number.

1021112243 is a deficient number, since it is larger than the sum of its proper divisors (35568157).

1021112243 is an equidigital number, since it uses as much as digits as its factorization.

1021112243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11941.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1021112243 is about 31954.8469406442. The cubic root of 1021112243 is about 1006.9884619638.

Adding to 1021112243 its reverse (3422111201), we get a palindrome (4443223444).

The spelling of 1021112243 in words is "one billion, twenty-one million, one hundred twelve thousand, two hundred forty-three".