22312021123 has 16 divisors (see below), whose sum is σ = 25596583936. Its totient is φ = 19051860960.

The previous prime is 22312021097. The next prime is 22312021129. The reversal of 22312021123 is 32112021322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22312021123 is a prime.

It is a super-3 number, since 3×22312021123³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 22312021123.

It is not an unprimeable number, because it can be changed into a prime (22312021129) 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 15 ways as a sum of consecutive naturals, for example, 2583190 + ... + 2591812.

It is an arithmetic number, because the mean of its divisors is an integer number (1599786496).

Almost surely, 2^22312021123 is an apocalyptic number.

22312021123 is a deficient number, since it is larger than the sum of its proper divisors (3284562813).

22312021123 is an equidigital number, since it uses as much as digits as its factorization.

22312021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22312021123 its reverse (32112021322), we get a palindrome (54424042445).

The spelling of 22312021123 in words is "twenty-two billion, three hundred twelve million, twenty-one thousand, one hundred twenty-three".