22143400423 has 2 divisors, whose sum is σ = 22143400424. Its totient is φ = 22143400422.

The previous prime is 22143400381. The next prime is 22143400427. The reversal of 22143400423 is 32400434122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22143400423 - 2⁹ = 22143399911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22143400427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071700211 + 11071700212.

It is an arithmetic number, because the mean of its divisors is an integer number (11071700212).

Almost surely, 2^22143400423 is an apocalyptic number.

22143400423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143400423 is an equidigital number, since it uses as much as digits as its factorization.

22143400423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22143400423 its reverse (32400434122), we get a palindrome (54543834545).

The spelling of 22143400423 in words is "twenty-two billion, one hundred forty-three million, four hundred thousand, four hundred twenty-three".