23232111503521 has 2 divisors, whose sum is σ = 23232111503522. Its totient is φ = 23232111503520.

The previous prime is 23232111503519. The next prime is 23232111503527. The reversal of 23232111503521 is 12530511123232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18248104368400 + 4984007135121 = 4271780^2 + 2232489^2 .

It is a cyclic number.

It is not a de Polignac number, because 23232111503521 - 2¹ = 23232111503519 is a prime.

Together with 23232111503519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23232111503527) 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, 11616055751760 + 11616055751761.

It is an arithmetic number, because the mean of its divisors is an integer number (11616055751761).

Almost surely, 2^{23232111503521} is an apocalyptic number.

It is an amenable number.

23232111503521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23232111503521 is an equidigital number, since it uses as much as digits as its factorization.

23232111503521 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 31.

Adding to 23232111503521 its reverse (12530511123232), we get a palindrome (35762622626753).

The spelling of 23232111503521 in words is "twenty-three trillion, two hundred thirty-two billion, one hundred eleven million, five hundred three thousand, five hundred twenty-one".