22503140354243 has 4 divisors (see below), whose sum is σ = 22507121102928. Its totient is φ = 22499159605560.

The previous prime is 22503140354159. The next prime is 22503140354329. The reversal of 22503140354243 is 34245304130522.

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

It is a cyclic number.

It is not a de Polignac number, because 22503140354243 - 2¹⁰ = 22503140353219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22503140354197 and 22503140354206.

It is not an unprimeable number, because it can be changed into a prime (22503140354543) 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, 1990365863 + ... + 1990377168.

It is an arithmetic number, because the mean of its divisors is an integer number (5626780275732).

Almost surely, 2^{22503140354243} is an apocalyptic number.

22503140354243 is a deficient number, since it is larger than the sum of its proper divisors (3980748685).

22503140354243 is an equidigital number, since it uses as much as digits as its factorization.

22503140354243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980748684.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 22503140354243 its reverse (34245304130522), we get a palindrome (56748444484765).

The spelling of 22503140354243 in words is "twenty-two trillion, five hundred three billion, one hundred forty million, three hundred fifty-four thousand, two hundred forty-three".