11423003021021 has 16 divisors (see below), whose sum is σ = 11978738956800. Its totient is φ = 10880679828480.

The previous prime is 11423003020999. The next prime is 11423003021093. The reversal of 11423003021021 is 12012030032411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11423003021021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11423003020984 and 11423003021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423003024021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2879021 + ... + 5579853.

It is an arithmetic number, because the mean of its divisors is an integer number (748671184800).

Almost surely, 2^{11423003021021} is an apocalyptic number.

It is an amenable number.

11423003021021 is a deficient number, since it is larger than the sum of its proper divisors (555735935779).

11423003021021 is a wasteful number, since it uses less digits than its factorization.

11423003021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703316.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11423003021021 its reverse (12012030032411), we get a palindrome (23435033053432).

The spelling of 11423003021021 in words is "eleven trillion, four hundred twenty-three billion, three million, twenty-one thousand, twenty-one".