23220240312143 has 16 divisors (see below), whose sum is σ = 26687735988480. Its totient is φ = 19790341466496.

The previous prime is 23220240312131. The next prime is 23220240312151. The reversal of 23220240312143 is 34121304202232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23220240312143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220240312343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15632471 + ... + 17053287.

It is an arithmetic number, because the mean of its divisors is an integer number (1667983499280).

Almost surely, 2^{23220240312143} is an apocalyptic number.

23220240312143 is a deficient number, since it is larger than the sum of its proper divisors (3467495676337).

23220240312143 is a wasteful number, since it uses less digits than its factorization.

23220240312143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434046.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23220240312143 its reverse (34121304202232), we get a palindrome (57341544514375).

The spelling of 23220240312143 in words is "twenty-three trillion, two hundred twenty billion, two hundred forty million, three hundred twelve thousand, one hundred forty-three".