23851206523 has 2 divisors, whose sum is σ = 23851206524. Its totient is φ = 23851206522.

The previous prime is 23851206487. The next prime is 23851206527. The reversal of 23851206523 is 32560215832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23851206523 is a prime.

It is a super-3 number, since 3×23851206523³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23851206527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11925603261 + 11925603262.

It is an arithmetic number, because the mean of its divisors is an integer number (11925603262).

Almost surely, 2^23851206523 is an apocalyptic number.

23851206523 is a deficient number, since it is larger than the sum of its proper divisors (1).

23851206523 is an equidigital number, since it uses as much as digits as its factorization.

23851206523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 23851206523 in words is "twenty-three billion, eight hundred fifty-one million, two hundred six thousand, five hundred twenty-three".