22320203123 has 4 divisors (see below), whose sum is σ = 22359848808. Its totient is φ = 22280557440.

The previous prime is 22320203119. The next prime is 22320203149. The reversal of 22320203123 is 32130202322.

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 22320203123 - 2² = 22320203119 is a prime.

It is a super-3 number, since 3×22320203123³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22320203095 and 22320203104.

It is not an unprimeable number, because it can be changed into a prime (22320202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19821998 + ... + 19823123.

It is an arithmetic number, because the mean of its divisors is an integer number (5589962202).

Almost surely, 2^22320203123 is an apocalyptic number.

22320203123 is a deficient number, since it is larger than the sum of its proper divisors (39645685).

22320203123 is an equidigital number, since it uses as much as digits as its factorization.

22320203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39645684.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22320203123 its reverse (32130202322), we get a palindrome (54450405445).

The spelling of 22320203123 in words is "twenty-two billion, three hundred twenty million, two hundred three thousand, one hundred twenty-three".