23403335533 has 2 divisors, whose sum is σ = 23403335534. Its totient is φ = 23403335532.

The previous prime is 23403335509. The next prime is 23403335561. The reversal of 23403335533 is 33553330432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22680962404 + 722373129 = 150602^2 + 26877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23403335533 is a prime.

It is a super-2 number, since 2×23403335533² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23403335563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701667766 + 11701667767.

It is an arithmetic number, because the mean of its divisors is an integer number (11701667767).

Almost surely, 2^23403335533 is an apocalyptic number.

It is an amenable number.

23403335533 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403335533 is an equidigital number, since it uses as much as digits as its factorization.

23403335533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 34.

Adding to 23403335533 its reverse (33553330432), we get a palindrome (56956665965).

The spelling of 23403335533 in words is "twenty-three billion, four hundred three million, three hundred thirty-five thousand, five hundred thirty-three".