23011212143 has 8 divisors (see below), whose sum is σ = 23076368640. Its totient is φ = 22946087200.

The previous prime is 23011212137. The next prime is 23011212149. The reversal of 23011212143 is 34121211032.

It is an interprime number because it is at equal distance from previous prime (23011212137) and next prime (23011212149).

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 23011212143 - 2²⁰ = 23010163567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011212149) 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, 2908493 + ... + 2916393.

It is an arithmetic number, because the mean of its divisors is an integer number (2884546080).

Almost surely, 2^23011212143 is an apocalyptic number.

23011212143 is a deficient number, since it is larger than the sum of its proper divisors (65156497).

23011212143 is an equidigital number, since it uses as much as digits as its factorization.

23011212143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15777.

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

Adding to 23011212143 its reverse (34121211032), we get a palindrome (57132423175).

The spelling of 23011212143 in words is "twenty-three billion, eleven million, two hundred twelve thousand, one hundred forty-three".