2211003123 has 16 divisors (see below), whose sum is σ = 3485326080. Its totient is φ = 1219863456.

The previous prime is 2211003121. The next prime is 2211003127. The reversal of 2211003123 is 3213001122.

It is not a de Polignac number, because 2211003123 - 2¹ = 2211003121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211003121) 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 15 ways as a sum of consecutive naturals, for example, 1814665 + ... + 1815882.

It is an arithmetic number, because the mean of its divisors is an integer number (217832880).

Almost surely, 2^2211003123 is an apocalyptic number.

2211003123 is a deficient number, since it is larger than the sum of its proper divisors (1274322957).

2211003123 is a wasteful number, since it uses less digits than its factorization.

2211003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630586.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2211003123 is about 47021.3049903977. The cubic root of 2211003123 is about 1302.7561098839.

Adding to 2211003123 its reverse (3213001122), we get a palindrome (5424004245).

The spelling of 2211003123 in words is "two billion, two hundred eleven million, three thousand, one hundred twenty-three".