11321021123021 has 4 divisors (see below), whose sum is σ = 11357897413632. Its totient is φ = 11284144832412.

The previous prime is 11321021122979. The next prime is 11321021123047. The reversal of 11321021123021 is 12032112012311.

11321021123021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-11321021123021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321021122984 and 11321021123002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321021123821) 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, 18438144845 + ... + 18438145458.

It is an arithmetic number, because the mean of its divisors is an integer number (2839474353408).

Almost surely, 2^{11321021123021} is an apocalyptic number.

It is an amenable number.

11321021123021 is a deficient number, since it is larger than the sum of its proper divisors (36876290611).

11321021123021 is an equidigital number, since it uses as much as digits as its factorization.

11321021123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36876290610.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11321021123021 its reverse (12032112012311), we get a palindrome (23353133135332).

The spelling of 11321021123021 in words is "eleven trillion, three hundred twenty-one billion, twenty-one million, one hundred twenty-three thousand, twenty-one".