23151403523 has 2 divisors, whose sum is σ = 23151403524. Its totient is φ = 23151403522.

The previous prime is 23151403507. The next prime is 23151403531. The reversal of 23151403523 is 32530415132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23151403523 - 2⁴ = 23151403507 is a prime.

It is not a weakly prime, because it can be changed into another prime (23151402523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11575701761 + 11575701762.

It is an arithmetic number, because the mean of its divisors is an integer number (11575701762).

Almost surely, 2^23151403523 is an apocalyptic number.

23151403523 is a deficient number, since it is larger than the sum of its proper divisors (1).

23151403523 is an equidigital number, since it uses as much as digits as its factorization.

23151403523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 23151403523 its reverse (32530415132), we get a palindrome (55681818655).

The spelling of 23151403523 in words is "twenty-three billion, one hundred fifty-one million, four hundred three thousand, five hundred twenty-three".