2111123233421 has 8 divisors (see below), whose sum is σ = 2273193512640. Its totient is φ = 1953262571968.

The previous prime is 2111123233403. The next prime is 2111123233537. The reversal of 2111123233421 is 1243323211112.

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 2111123233421 - 2¹⁰ = 2111123232397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111123230421) 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, 1052403401 + ... + 1052405406.

It is an arithmetic number, because the mean of its divisors is an integer number (284149189080).

Almost surely, 2^{2111123233421} is an apocalyptic number.

It is an amenable number.

2111123233421 is a deficient number, since it is larger than the sum of its proper divisors (162070279219).

2111123233421 is a wasteful number, since it uses less digits than its factorization.

2111123233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104808883.

The product of its digits is 1728, while the sum is 26.

Adding to 2111123233421 its reverse (1243323211112), we get a palindrome (3354446444533).

The spelling of 2111123233421 in words is "two trillion, one hundred eleven billion, one hundred twenty-three million, two hundred thirty-three thousand, four hundred twenty-one".