11000021033 has 4 divisors (see below), whose sum is σ = 11007024528. Its totient is φ = 10993017540.

The previous prime is 11000021027. The next prime is 11000021069. The reversal of 11000021033 is 33012000011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33012000011 = 3221 ⋅10248991.

It is a cyclic number.

It is not a de Polignac number, because 11000021033 - 2⁴ = 11000021017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000021023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3499391 + ... + 3502532.

It is an arithmetic number, because the mean of its divisors is an integer number (2751756132).

Almost surely, 2^11000021033 is an apocalyptic number.

It is an amenable number.

11000021033 is a deficient number, since it is larger than the sum of its proper divisors (7003495).

11000021033 is an equidigital number, since it uses as much as digits as its factorization.

11000021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003494.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 11000021033 its reverse (33012000011), we get a palindrome (44012021044).

The spelling of 11000021033 in words is "eleven billion, twenty-one thousand, thirty-three".