12023243533 has 24 divisors (see below), whose sum is σ = 14306607384. Its totient is φ = 10071734400.

The previous prime is 12023243527. The next prime is 12023243539. The reversal of 12023243533 is 33534232021.

It is an interprime number because it is at equal distance from previous prime (12023243527) and next prime (12023243539).

It can be written as a sum of positive squares in 4 ways, for example, as 431060644 + 11592182889 = 20762^2 + 107667^2 .

It is not a de Polignac number, because 12023243533 - 2²⁹ = 11486372621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023243539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456463 + ... + 482083.

It is an arithmetic number, because the mean of its divisors is an integer number (596108641).

Almost surely, 2^12023243533 is an apocalyptic number.

It is an amenable number.

12023243533 is a deficient number, since it is larger than the sum of its proper divisors (2283363851).

12023243533 is a wasteful number, since it uses less digits than its factorization.

12023243533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25853 (or 25846 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 12023243533 its reverse (33534232021), we get a palindrome (45557475554).

The spelling of 12023243533 in words is "twelve billion, twenty-three million, two hundred forty-three thousand, five hundred thirty-three".