23011220003 has 8 divisors (see below), whose sum is σ = 23071273680. Its totient is φ = 22951209600.

The previous prime is 23011219999. The next prime is 23011220041. The reversal of 23011220003 is 30002211032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23011220003 - 2² = 23011219999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23011220003.

It is not an unprimeable number, because it can be changed into a prime (23011220083) 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, 1237928 + ... + 1256378.

It is an arithmetic number, because the mean of its divisors is an integer number (2883909210).

Almost surely, 2^23011220003 is an apocalyptic number.

23011220003 is a deficient number, since it is larger than the sum of its proper divisors (60053677).

23011220003 is a wasteful number, since it uses less digits than its factorization.

23011220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21637.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23011220003 its reverse (30002211032), we get a palindrome (53013431035).

The spelling of 23011220003 in words is "twenty-three billion, eleven million, two hundred twenty thousand, three".