23121311030203 has 4 divisors (see below), whose sum is σ = 23211277221240. Its totient is φ = 23031344839168.

The previous prime is 23121311030173. The next prime is 23121311030243. The reversal of 23121311030203 is 30203011312132.

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 23121311030203 - 2³⁷ = 22983872076731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23121311030243) 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, 44983095133 + ... + 44983095646.

It is an arithmetic number, because the mean of its divisors is an integer number (5802819305310).

Almost surely, 2^{23121311030203} is an apocalyptic number.

23121311030203 is a deficient number, since it is larger than the sum of its proper divisors (89966191037).

23121311030203 is an equidigital number, since it uses as much as digits as its factorization.

23121311030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89966191036.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 23121311030203 its reverse (30203011312132), we get a palindrome (53324322342335).

The spelling of 23121311030203 in words is "twenty-three trillion, one hundred twenty-one billion, three hundred eleven million, thirty thousand, two hundred three".