23721101043 has 16 divisors (see below), whose sum is σ = 32670738336. Its totient is φ = 15297707520.

The previous prime is 23721101039. The next prime is 23721101069. The reversal of 23721101043 is 34010112732.

It is a happy number.

It is not a de Polignac number, because 23721101043 - 2² = 23721101039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23721109043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598438 + ... + 636843.

It is an arithmetic number, because the mean of its divisors is an integer number (2041921146).

Almost surely, 2^23721101043 is an apocalyptic number.

23721101043 is a deficient number, since it is larger than the sum of its proper divisors (8949637293).

23721101043 is a wasteful number, since it uses less digits than its factorization.

23721101043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235494.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 23721101043 its reverse (34010112732), we get a palindrome (57731213775).

The spelling of 23721101043 in words is "twenty-three billion, seven hundred twenty-one million, one hundred one thousand, forty-three".