211121112023 has 8 divisors (see below), whose sum is σ = 212212540800. Its totient is φ = 210032416440.

The previous prime is 211121112017. The next prime is 211121112049. The reversal of 211121112023 is 320211121112.

It is a happy number.

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 211121112023 - 2⁶ = 211121111959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211121111992 and 211121112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121112623) 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, 528323 + ... + 837476.

It is an arithmetic number, because the mean of its divisors is an integer number (26526567600).

Almost surely, 2^211121112023 is an apocalyptic number.

211121112023 is a deficient number, since it is larger than the sum of its proper divisors (1091428777).

211121112023 is a wasteful number, since it uses less digits than its factorization.

211121112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366597.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211121112023 its reverse (320211121112), we get a palindrome (531332233135).

The spelling of 211121112023 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred twelve thousand, twenty-three".