23420021327 has 2 divisors, whose sum is σ = 23420021328. Its totient is φ = 23420021326.

The previous prime is 23420021227. The next prime is 23420021333. The reversal of 23420021327 is 72312002432.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23420021327 - 2¹⁴ = 23420004943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23420021296 and 23420021305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23420021227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710010663 + 11710010664.

It is an arithmetic number, because the mean of its divisors is an integer number (11710010664).

Almost surely, 2^23420021327 is an apocalyptic number.

23420021327 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420021327 is an equidigital number, since it uses as much as digits as its factorization.

23420021327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 23420021327 its reverse (72312002432), we get a palindrome (95732023759).

The spelling of 23420021327 in words is "twenty-three billion, four hundred twenty million, twenty-one thousand, three hundred twenty-seven".