40043223023 has 2 divisors, whose sum is σ = 40043223024. Its totient is φ = 40043223022.

The previous prime is 40043222983. The next prime is 40043223049. The reversal of 40043223023 is 32032234004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40043223023 - 2¹⁴ = 40043206639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40043223023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40043283023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20021611511 + 20021611512.

It is an arithmetic number, because the mean of its divisors is an integer number (20021611512).

Almost surely, 2^40043223023 is an apocalyptic number.

40043223023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40043223023 is an equidigital number, since it uses as much as digits as its factorization.

40043223023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 40043223023 its reverse (32032234004), we get a palindrome (72075457027).

The spelling of 40043223023 in words is "forty billion, forty-three million, two hundred twenty-three thousand, twenty-three".