11432333021 has 2 divisors, whose sum is σ = 11432333022. Its totient is φ = 11432333020.

The previous prime is 11432332999. The next prime is 11432333039. The reversal of 11432333021 is 12033323411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7532330521 + 3900002500 = 86789^2 + 62450^2 .

It is an emirp because it is prime and its reverse (12033323411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11432333021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11432333051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5716166510 + 5716166511.

It is an arithmetic number, because the mean of its divisors is an integer number (5716166511).

Almost surely, 2^11432333021 is an apocalyptic number.

It is an amenable number.

11432333021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11432333021 is an equidigital number, since it uses as much as digits as its factorization.

11432333021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 11432333021 its reverse (12033323411), we get a palindrome (23465656432).

The spelling of 11432333021 in words is "eleven billion, four hundred thirty-two million, three hundred thirty-three thousand, twenty-one".