11311030233021 has 16 divisors (see below), whose sum is σ = 15403105206720. Its totient is φ = 7381488044160.

The previous prime is 11311030233001. The next prime is 11311030233067. The reversal of 11311030233021 is 12033203011311.

It is a happy number.

It is not a de Polignac number, because 11311030233021 - 2¹⁰ = 11311030231997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311030233001) 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, 208348200 + ... + 208402481.

It is an arithmetic number, because the mean of its divisors is an integer number (962694075420).

Almost surely, 2^{11311030233021} is an apocalyptic number.

It is an amenable number.

11311030233021 is a deficient number, since it is larger than the sum of its proper divisors (4092074973699).

11311030233021 is a wasteful number, since it uses less digits than its factorization.

11311030233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416750876.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11311030233021 its reverse (12033203011311), we get a palindrome (23344233244332).

The spelling of 11311030233021 in words is "eleven trillion, three hundred eleven billion, thirty million, two hundred thirty-three thousand, twenty-one".