2111121023 has 8 divisors (see below), whose sum is σ = 2337415680. Its totient is φ = 1890555480.

The previous prime is 2111121017. The next prime is 2111121071. The reversal of 2111121023 is 3201211112.

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

It is not a de Polignac number, because 2111121023 - 2¹⁰ = 2111119999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111120989 and 2111121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121083) 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, 1431503 + ... + 1432976.

It is an arithmetic number, because the mean of its divisors is an integer number (292176960).

Almost surely, 2^2111121023 is an apocalyptic number.

2111121023 is a deficient number, since it is larger than the sum of its proper divisors (226294657).

2111121023 is a wasteful number, since it uses less digits than its factorization.

2111121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864557.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111121023 is about 45946.9370361072. The cubic root of 2111121023 is about 1282.8357181022.

Adding to 2111121023 its reverse (3201211112), we get a palindrome (5312332135).

The spelling of 2111121023 in words is "two billion, one hundred eleven million, one hundred twenty-one thousand, twenty-three".