23111402123 has 8 divisors (see below), whose sum is σ = 23550630768. Its totient is φ = 22672290784.

The previous prime is 23111402113. The next prime is 23111402141. The reversal of 23111402123 is 32120411132.

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 23111402123 - 2⁴ = 23111402107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23111402095 and 23111402104.

It is not an unprimeable number, because it can be changed into a prime (23111402113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438665 + ... + 488517.

It is an arithmetic number, because the mean of its divisors is an integer number (2943828846).

Almost surely, 2^23111402123 is an apocalyptic number.

23111402123 is a deficient number, since it is larger than the sum of its proper divisors (439228645).

23111402123 is an equidigital number, since it uses as much as digits as its factorization.

23111402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58653.

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

Adding to 23111402123 its reverse (32120411132), we get a palindrome (55231813255).

Subtracting 23111402123 from its reverse (32120411132), we obtain a palindrome (9009009009).

The spelling of 23111402123 in words is "twenty-three billion, one hundred eleven million, four hundred two thousand, one hundred twenty-three".