12201031023 has 4 divisors (see below), whose sum is σ = 16268041368. Its totient is φ = 8134020680.

The previous prime is 12201031009. The next prime is 12201031027. The reversal of 12201031023 is 32013010221.

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 12201031023 - 2⁸ = 12201030767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201030993 and 12201031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201031027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033505168 + ... + 2033505173.

It is an arithmetic number, because the mean of its divisors is an integer number (4067010342).

Almost surely, 2^12201031023 is an apocalyptic number.

12201031023 is a deficient number, since it is larger than the sum of its proper divisors (4067010345).

12201031023 is an equidigital number, since it uses as much as digits as its factorization.

12201031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067010344.

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

Adding to 12201031023 its reverse (32013010221), we get a palindrome (44214041244).

The spelling of 12201031023 in words is "twelve billion, two hundred one million, thirty-one thousand, twenty-three".