12303321157 has 2 divisors, whose sum is σ = 12303321158. Its totient is φ = 12303321156.

The previous prime is 12303321143. The next prime is 12303321167. The reversal of 12303321157 is 75112330321.

12303321157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9958243681 + 2345077476 = 99791^2 + 48426^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303321157 - 2²³ = 12294932549 is a prime.

It is a super-2 number, since 2×12303321157² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12303321127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151660578 + 6151660579.

It is an arithmetic number, because the mean of its divisors is an integer number (6151660579).

Almost surely, 2^12303321157 is an apocalyptic number.

It is an amenable number.

12303321157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303321157 is an equidigital number, since it uses as much as digits as its factorization.

12303321157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 12303321157 its reverse (75112330321), we get a palindrome (87415651478).

The spelling of 12303321157 in words is "twelve billion, three hundred three million, three hundred twenty-one thousand, one hundred fifty-seven".