23061020551 has 2 divisors, whose sum is σ = 23061020552. Its totient is φ = 23061020550.

The previous prime is 23061020539. The next prime is 23061020623. The reversal of 23061020551 is 15502016032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23061020551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23061020501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11530510275 + 11530510276.

It is an arithmetic number, because the mean of its divisors is an integer number (11530510276).

Almost surely, 2^23061020551 is an apocalyptic number.

23061020551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23061020551 is an equidigital number, since it uses as much as digits as its factorization.

23061020551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 23061020551 its reverse (15502016032), we get a palindrome (38563036583).

The spelling of 23061020551 in words is "twenty-three billion, sixty-one million, twenty thousand, five hundred fifty-one".