12303022031 has 4 divisors (see below), whose sum is σ = 12727264200. Its totient is φ = 11878779864.

The previous prime is 12303022027. The next prime is 12303022037. The reversal of 12303022031 is 13022030321.

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 12303022031 - 2² = 12303022027 is a prime.

It is a super-2 number, since 2×12303022031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303022037) 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, 212121041 + ... + 212121098.

It is an arithmetic number, because the mean of its divisors is an integer number (3181816050).

Almost surely, 2^12303022031 is an apocalyptic number.

12303022031 is a deficient number, since it is larger than the sum of its proper divisors (424242169).

12303022031 is an equidigital number, since it uses as much as digits as its factorization.

12303022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424242168.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12303022031 its reverse (13022030321), we get a palindrome (25325052352).

The spelling of 12303022031 in words is "twelve billion, three hundred three million, twenty-two thousand, thirty-one".