211121003023 has 16 divisors (see below), whose sum is σ = 250270447680. Its totient is φ = 174252347136.

The previous prime is 211121003011. The next prime is 211121003057. The reversal of 211121003023 is 320300121112.

It is not a de Polignac number, because 211121003023 - 2⁵ = 211121002991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211121002988 and 211121003006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121003123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318390 + ... + 1469827.

It is an arithmetic number, because the mean of its divisors is an integer number (15641902980).

Almost surely, 2^211121003023 is an apocalyptic number.

211121003023 is a deficient number, since it is larger than the sum of its proper divisors (39149444657).

211121003023 is a wasteful number, since it uses less digits than its factorization.

211121003023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788626.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211121003023 its reverse (320300121112), we get a palindrome (531421124135).

The spelling of 211121003023 in words is "two hundred eleven billion, one hundred twenty-one million, three thousand, twenty-three".