11023333421 has 2 divisors, whose sum is σ = 11023333422. Its totient is φ = 11023333420.

The previous prime is 11023333393. The next prime is 11023333429. The reversal of 11023333421 is 12433332011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7848010921 + 3175322500 = 88589^2 + 56350^2 .

It is an emirp because it is prime and its reverse (12433332011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11023333421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11023333429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511666710 + 5511666711.

It is an arithmetic number, because the mean of its divisors is an integer number (5511666711).

Almost surely, 2^11023333421 is an apocalyptic number.

It is an amenable number.

11023333421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023333421 is an equidigital number, since it uses as much as digits as its factorization.

11023333421 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 11023333421 its reverse (12433332011), we get a palindrome (23456665432).

The spelling of 11023333421 in words is "eleven billion, twenty-three million, three hundred thirty-three thousand, four hundred twenty-one".