2211031023 has 4 divisors (see below), whose sum is σ = 2948041368. Its totient is φ = 1474020680.

The previous prime is 2211031013. The next prime is 2211031057. The reversal of 2211031023 is 3201301122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2211031023 - 2¹⁰ = 2211029999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211030993 and 2211031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211031003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368505168 + ... + 368505173.

It is an arithmetic number, because the mean of its divisors is an integer number (737010342).

Almost surely, 2^2211031023 is an apocalyptic number.

2211031023 is a deficient number, since it is larger than the sum of its proper divisors (737010345).

2211031023 is an equidigital number, since it uses as much as digits as its factorization.

2211031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737010344.

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

The square root of 2211031023 is about 47021.6016634908. The cubic root of 2211031023 is about 1302.7615895600.

Adding to 2211031023 its reverse (3201301122), we get a palindrome (5412332145).

The spelling of 2211031023 in words is "two billion, two hundred eleven million, thirty-one thousand, twenty-three".