20223121021243 has 8 divisors (see below), whose sum is σ = 23118093542880. Its totient is φ = 17329637307840.

The previous prime is 20223121021219. The next prime is 20223121021297. The reversal of 20223121021243 is 34212012132202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223121021243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20223121021843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372172948 + ... + 372227281.

It is an arithmetic number, because the mean of its divisors is an integer number (2889761692860).

Almost surely, 2^{20223121021243} is an apocalyptic number.

20223121021243 is a deficient number, since it is larger than the sum of its proper divisors (2894972521637).

20223121021243 is an equidigital number, since it uses as much as digits as its factorization.

20223121021243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744404117.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20223121021243 its reverse (34212012132202), we get a palindrome (54435133153445).

The spelling of 20223121021243 in words is "twenty trillion, two hundred twenty-three billion, one hundred twenty-one million, twenty-one thousand, two hundred forty-three".