23221185847 has 2 divisors, whose sum is σ = 23221185848. Its totient is φ = 23221185846.

The previous prime is 23221185817. The next prime is 23221185851. The reversal of 23221185847 is 74858112232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23221185847 - 2²³ = 23212797239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221185817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610592923 + 11610592924.

It is an arithmetic number, because the mean of its divisors is an integer number (11610592924).

Almost surely, 2^23221185847 is an apocalyptic number.

23221185847 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221185847 is an equidigital number, since it uses as much as digits as its factorization.

23221185847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 43.

The spelling of 23221185847 in words is "twenty-three billion, two hundred twenty-one million, one hundred eighty-five thousand, eight hundred forty-seven".