22503144554123 has 4 divisors (see below), whose sum is σ = 22503159370320. Its totient is φ = 22503129737928.

The previous prime is 22503144554119. The next prime is 22503144554159. The reversal of 22503144554123 is 32145544130522.

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 22503144554123 - 2² = 22503144554119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22503104554123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4831040 + ... + 8267117.

It is an arithmetic number, because the mean of its divisors is an integer number (5625789842580).

Almost surely, 2^{22503144554123} is an apocalyptic number.

22503144554123 is a deficient number, since it is larger than the sum of its proper divisors (14816197).

22503144554123 is a wasteful number, since it uses less digits than its factorization.

22503144554123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14816196.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 22503144554123 its reverse (32145544130522), we get a palindrome (54648688684645).

The spelling of 22503144554123 in words is "twenty-two trillion, five hundred three billion, one hundred forty-four million, five hundred fifty-four thousand, one hundred twenty-three".