20112321223001 has 4 divisors (see below), whose sum is σ = 22985509969152. Its totient is φ = 17239132476852.

The previous prime is 20112321222979. The next prime is 20112321223031. The reversal of 20112321223001 is 10032212321102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20112321223001 - 2³⁴ = 20095141353817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20112321223031) 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, 1436594373065 + ... + 1436594373078.

It is an arithmetic number, because the mean of its divisors is an integer number (5746377492288).

Almost surely, 2^{20112321223001} is an apocalyptic number.

It is an amenable number.

20112321223001 is a deficient number, since it is larger than the sum of its proper divisors (2873188746151).

20112321223001 is an equidigital number, since it uses as much as digits as its factorization.

20112321223001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873188746150.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20112321223001 its reverse (10032212321102), we get a palindrome (30144533544103).

The spelling of 20112321223001 in words is "twenty trillion, one hundred twelve billion, three hundred twenty-one million, two hundred twenty-three thousand, one".