2211131102123 has 4 divisors (see below), whose sum is σ = 2341197637560. Its totient is φ = 2081064566688.

The previous prime is 2211131102111. The next prime is 2211131102129. The reversal of 2211131102123 is 3212011311122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2211131102123 - 2⁴ = 2211131102107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211131102095 and 2211131102104.

It is not an unprimeable number, because it can be changed into a prime (2211131102129) 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, 65033267693 + ... + 65033267726.

It is an arithmetic number, because the mean of its divisors is an integer number (585299409390).

Almost surely, 2^{2211131102123} is an apocalyptic number.

2211131102123 is a deficient number, since it is larger than the sum of its proper divisors (130066535437).

2211131102123 is a wasteful number, since it uses less digits than its factorization.

2211131102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130066535436.

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

Adding to 2211131102123 its reverse (3212011311122), we get a palindrome (5423142413245).

The spelling of 2211131102123 in words is "two trillion, two hundred eleven billion, one hundred thirty-one million, one hundred two thousand, one hundred twenty-three".