23231121144403 has 4 divisors (see below), whose sum is σ = 23577854295880. Its totient is φ = 22884387992928.

The previous prime is 23231121144401. The next prime is 23231121144409. The reversal of 23231121144403 is 30444112113232.

It is a happy number.

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 23231121144403 - 2¹ = 23231121144401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231121144401) 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, 173366575638 + ... + 173366575771.

It is an arithmetic number, because the mean of its divisors is an integer number (5894463573970).

Almost surely, 2^{23231121144403} is an apocalyptic number.

23231121144403 is a deficient number, since it is larger than the sum of its proper divisors (346733151477).

23231121144403 is an equidigital number, since it uses as much as digits as its factorization.

23231121144403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346733151476.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 23231121144403 its reverse (30444112113232), we get a palindrome (53675233257635).

The spelling of 23231121144403 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred forty-four thousand, four hundred three".