2111131100233 has 4 divisors (see below), whose sum is σ = 2111264537728. Its totient is φ = 2110997662740.

The previous prime is 2111131100231. The next prime is 2111131100297. The reversal of 2111131100233 is 3320011311112.

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 2111131100233 - 2¹ = 2111131100231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111131100233.

It is not an unprimeable number, because it can be changed into a prime (2111131100231) 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, 66695013 + ... + 66726658.

It is an arithmetic number, because the mean of its divisors is an integer number (527816134432).

Almost surely, 2^{2111131100233} is an apocalyptic number.

It is an amenable number.

2111131100233 is a deficient number, since it is larger than the sum of its proper divisors (133437495).

2111131100233 is a wasteful number, since it uses less digits than its factorization.

2111131100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133437494.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2111131100233 its reverse (3320011311112), we get a palindrome (5431142411345).

The spelling of 2111131100233 in words is "two trillion, one hundred eleven billion, one hundred thirty-one million, one hundred thousand, two hundred thirty-three".