23121101222003 has 4 divisors (see below), whose sum is σ = 23121390059568. Its totient is φ = 23120812384440.

The previous prime is 23121101221997. The next prime is 23121101222071. The reversal of 23121101222003 is 30022210112132.

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 23121101222003 - 2⁸ = 23121101221747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23121103222003) 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, 144298676 + ... + 144458817.

It is an arithmetic number, because the mean of its divisors is an integer number (5780347514892).

Almost surely, 2^{23121101222003} is an apocalyptic number.

23121101222003 is a deficient number, since it is larger than the sum of its proper divisors (288837565).

23121101222003 is an equidigital number, since it uses as much as digits as its factorization.

23121101222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288837564.

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

Adding to 23121101222003 its reverse (30022210112132), we get a palindrome (53143311334135).

The spelling of 23121101222003 in words is "twenty-three trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, three".