2211231023 has 4 divisors (see below), whose sum is σ = 2282561088. Its totient is φ = 2139900960.

The previous prime is 2211231013. The next prime is 2211231067. The reversal of 2211231023 is 3201321122.

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 2211231023 - 2⁸ = 2211230767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211230992 and 2211231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211231013) 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 3 ways as a sum of consecutive naturals, for example, 35664986 + ... + 35665047.

It is an arithmetic number, because the mean of its divisors is an integer number (570640272).

Almost surely, 2^2211231023 is an apocalyptic number.

2211231023 is a deficient number, since it is larger than the sum of its proper divisors (71330065).

2211231023 is an equidigital number, since it uses as much as digits as its factorization.

2211231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71330064.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2211231023 is about 47023.7282975308. The cubic root of 2211231023 is about 1302.8008690424.

Adding to 2211231023 its reverse (3201321122), we get a palindrome (5412552145).

Subtracting 2211231023 from its reverse (3201321122), we obtain a palindrome (990090099).

It can be divided in two parts, 22112 and 31023, that added together give a palindrome (53135).

The spelling of 2211231023 in words is "two billion, two hundred eleven million, two hundred thirty-one thousand, twenty-three".