23555343451 has 2 divisors, whose sum is σ = 23555343452. Its totient is φ = 23555343450.

The previous prime is 23555343419. The next prime is 23555343473. The reversal of 23555343451 is 15434355532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23555343451 - 2⁵ = 23555343419 is a prime.

It is not a weakly prime, because it can be changed into another prime (23555343751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11777671725 + 11777671726.

It is an arithmetic number, because the mean of its divisors is an integer number (11777671726).

Almost surely, 2^23555343451 is an apocalyptic number.

23555343451 is a deficient number, since it is larger than the sum of its proper divisors (1).

23555343451 is an equidigital number, since it uses as much as digits as its factorization.

23555343451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540000, while the sum is 40.

Adding to 23555343451 its reverse (15434355532), we get a palindrome (38989698983).

The spelling of 23555343451 in words is "twenty-three billion, five hundred fifty-five million, three hundred forty-three thousand, four hundred fifty-one".