22103512243 has 4 divisors (see below), whose sum is σ = 22140786888. Its totient is φ = 22066237600.

The previous prime is 22103512237. The next prime is 22103512283. The reversal of 22103512243 is 34221530122.

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-22103512243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22103512283) 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, 18636433 + ... + 18637618.

It is an arithmetic number, because the mean of its divisors is an integer number (5535196722).

Almost surely, 2^22103512243 is an apocalyptic number.

22103512243 is a deficient number, since it is larger than the sum of its proper divisors (37274645).

22103512243 is an equidigital number, since it uses as much as digits as its factorization.

22103512243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37274644.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 22103512243 in words is "twenty-two billion, one hundred three million, five hundred twelve thousand, two hundred forty-three".