12303131 has 2 divisors, whose sum is σ = 12303132. Its totient is φ = 12303130.

The previous prime is 12303107. The next prime is 12303139. The reversal of 12303131 is 13130321.

It is a strong prime.

It is an emirp because it is prime and its reverse (13130321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12303131 - 2²² = 8108827 is a prime.

It is a super-2 number, since 2×12303131² = 302734064806322, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (12303139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151565 + 6151566.

It is an arithmetic number, because the mean of its divisors is an integer number (6151566).

Almost surely, 2^12303131 is an apocalyptic number.

12303131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303131 is an equidigital number, since it uses as much as digits as its factorization.

12303131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 12303131 is about 3507.5819306183. The cubic root of 12303131 is about 230.8546088844.

Adding to 12303131 its reverse (13130321), we get a palindrome (25433452).

The spelling of 12303131 in words is "twelve million, three hundred three thousand, one hundred thirty-one".