23401323143 has 4 divisors (see below), whose sum is σ = 25528716168. Its totient is φ = 21273930120.

The previous prime is 23401323109. The next prime is 23401323163. The reversal of 23401323143 is 34132310432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23401323143 - 2¹⁸ = 23401060999 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 (23401323103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063696496 + ... + 1063696517.

It is an arithmetic number, because the mean of its divisors is an integer number (6382179042).

Almost surely, 2^23401323143 is an apocalyptic number.

23401323143 is a deficient number, since it is larger than the sum of its proper divisors (2127393025).

23401323143 is a wasteful number, since it uses less digits than its factorization.

23401323143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127393024.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 23401323143 its reverse (34132310432), we get a palindrome (57533633575).

The spelling of 23401323143 in words is "twenty-three billion, four hundred one million, three hundred twenty-three thousand, one hundred forty-three".