12211203023 has 4 divisors (see below), whose sum is σ = 12218400480. Its totient is φ = 12204005568.

The previous prime is 12211203019. The next prime is 12211203029. The reversal of 12211203023 is 32030211221.

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 12211203023 - 2² = 12211203019 is a prime.

It is a super-2 number, since 2×12211203023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211202992 and 12211203010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211203029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3596183 + ... + 3599576.

It is an arithmetic number, because the mean of its divisors is an integer number (3054600120).

Almost surely, 2^12211203023 is an apocalyptic number.

12211203023 is a deficient number, since it is larger than the sum of its proper divisors (7197457).

12211203023 is an equidigital number, since it uses as much as digits as its factorization.

12211203023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197456.

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

Adding to 12211203023 its reverse (32030211221), we get a palindrome (44241414244).

The spelling of 12211203023 in words is "twelve billion, two hundred eleven million, two hundred three thousand, twenty-three".