23223105551447 has 2 divisors, whose sum is σ = 23223105551448. Its totient is φ = 23223105551446.

The previous prime is 23223105551383. The next prime is 23223105551473. The reversal of 23223105551447 is 74415550132232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23223105551447 - 2⁶ = 23223105551383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23223105551398 and 23223105551407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23223105551747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611552775723 + 11611552775724.

It is an arithmetic number, because the mean of its divisors is an integer number (11611552775724).

Almost surely, 2^{23223105551447} is an apocalyptic number.

23223105551447 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223105551447 is an equidigital number, since it uses as much as digits as its factorization.

23223105551447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 44.

Adding to 23223105551447 its reverse (74415550132232), we get a palindrome (97638655683679).

The spelling of 23223105551447 in words is "twenty-three trillion, two hundred twenty-three billion, one hundred five million, five hundred fifty-one thousand, four hundred forty-seven".