23005021020143 has 4 divisors (see below), whose sum is σ = 23016598788120. Its totient is φ = 22993443252168.

The previous prime is 23005021020103. The next prime is 23005021020173. The reversal of 23005021020143 is 34102012050032.

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 23005021020143 - 2¹⁶ = 23005020954607 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 (23005021020103) 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, 5788881008 + ... + 5788884981.

It is an arithmetic number, because the mean of its divisors is an integer number (5754149697030).

Almost surely, 2^{23005021020143} is an apocalyptic number.

23005021020143 is a deficient number, since it is larger than the sum of its proper divisors (11577767977).

23005021020143 is a wasteful number, since it uses less digits than its factorization.

23005021020143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577767976.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23005021020143 its reverse (34102012050032), we get a palindrome (57107033070175).

The spelling of 23005021020143 in words is "twenty-three trillion, five billion, twenty-one million, twenty thousand, one hundred forty-three".