2011321102123 has 8 divisors (see below), whose sum is σ = 2053667023200. Its totient is φ = 1969413999168.

The previous prime is 2011321102111. The next prime is 2011321102159. The reversal of 2011321102123 is 3212011231102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011321102123 - 2²¹ = 2011319004971 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 2011321102123.

It is not an unprimeable number, because it can be changed into a prime (2011321103123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109695268 + ... + 109713601.

It is an arithmetic number, because the mean of its divisors is an integer number (256708377900).

Almost surely, 2^{2011321102123} is an apocalyptic number.

2011321102123 is a deficient number, since it is larger than the sum of its proper divisors (42345921077).

2011321102123 is a wasteful number, since it uses less digits than its factorization.

2011321102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219409061.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2011321102123 its reverse (3212011231102), we get a palindrome (5223332333225).

The spelling of 2011321102123 in words is "two trillion, eleven billion, three hundred twenty-one million, one hundred two thousand, one hundred twenty-three".