11023021201021 has 4 divisors (see below), whose sum is σ = 11023107982432. Its totient is φ = 11022934419612.

The previous prime is 11023021201009. The next prime is 11023021201037. The reversal of 11023021201021 is 12010212032011.

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.

It is a cyclic number.

It is not a de Polignac number, because 11023021201021 - 2³³ = 11014431266429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023021200986 and 11023021201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023021201421) 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, 43199895 + ... + 43454308.

It is an arithmetic number, because the mean of its divisors is an integer number (2755776995608).

Almost surely, 2^{11023021201021} is an apocalyptic number.

It is an amenable number.

11023021201021 is a deficient number, since it is larger than the sum of its proper divisors (86781411).

11023021201021 is an equidigital number, since it uses as much as digits as its factorization.

11023021201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86781410.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11023021201021 its reverse (12010212032011), we get a palindrome (23033233233032).

The spelling of 11023021201021 in words is "eleven trillion, twenty-three billion, twenty-one million, two hundred one thousand, twenty-one".