12312231203 has 2 divisors, whose sum is σ = 12312231204. Its totient is φ = 12312231202.

The previous prime is 12312231193. The next prime is 12312231233. The reversal of 12312231203 is 30213221321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12312231203 - 2²² = 12308036899 is a prime.

It is a super-2 number, since 2×12312231203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12312231233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156115601 + 6156115602.

It is an arithmetic number, because the mean of its divisors is an integer number (6156115602).

Almost surely, 2^12312231203 is an apocalyptic number.

12312231203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312231203 is an equidigital number, since it uses as much as digits as its factorization.

12312231203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12312231203 its reverse (30213221321), we get a palindrome (42525452524).

The spelling of 12312231203 in words is "twelve billion, three hundred twelve million, two hundred thirty-one thousand, two hundred three".