2111210023 has 12 divisors (see below), whose sum is σ = 2406428040. Its totient is φ = 1846237536.

The previous prime is 2111210021. The next prime is 2111210033. The reversal of 2111210023 is 3200121112.

It is not a de Polignac number, because 2111210023 - 2¹ = 2111210021 is a prime.

It is a super-2 number, since 2×2111210023² = 8914415522431321058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111209985 and 2111210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111210021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325536 + ... + 331957.

It is an arithmetic number, because the mean of its divisors is an integer number (200535670).

Almost surely, 2^2111210023 is an apocalyptic number.

2111210023 is a deficient number, since it is larger than the sum of its proper divisors (295218017).

2111210023 is a wasteful number, since it uses less digits than its factorization.

2111210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657538 (or 657525 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2111210023 is about 45947.9055344202. The cubic root of 2111210023 is about 1282.8537449820.

Adding to 2111210023 its reverse (3200121112), we get a palindrome (5311331135).

The spelling of 2111210023 in words is "two billion, one hundred eleven million, two hundred ten thousand, twenty-three".