23331000547 has 2 divisors, whose sum is σ = 23331000548. Its totient is φ = 23331000546.

The previous prime is 23331000529. The next prime is 23331000557. The reversal of 23331000547 is 74500013332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23331000547 is a prime.

It is a super-2 number, since 2×23331000547² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23331000557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665500273 + 11665500274.

It is an arithmetic number, because the mean of its divisors is an integer number (11665500274).

Almost surely, 2^23331000547 is an apocalyptic number.

23331000547 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331000547 is an equidigital number, since it uses as much as digits as its factorization.

23331000547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

Adding to 23331000547 its reverse (74500013332), we get a palindrome (97831013879).

The spelling of 23331000547 in words is "twenty-three billion, three hundred thirty-one million, five hundred forty-seven", and thus it is an aban number.