12340204057 has 2 divisors, whose sum is σ = 12340204058. Its totient is φ = 12340204056.

The previous prime is 12340204003. The next prime is 12340204081. The reversal of 12340204057 is 75040204321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6575750281 + 5764453776 = 81091^2 + 75924^2 .

It is a cyclic number.

It is not a de Polignac number, because 12340204057 - 2⁷ = 12340203929 is a prime.

It is not a weakly prime, because it can be changed into another prime (12340204087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170102028 + 6170102029.

It is an arithmetic number, because the mean of its divisors is an integer number (6170102029).

Almost surely, 2^12340204057 is an apocalyptic number.

It is an amenable number.

12340204057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340204057 is an equidigital number, since it uses as much as digits as its factorization.

12340204057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 12340204057 its reverse (75040204321), we get a palindrome (87380408378).

The spelling of 12340204057 in words is "twelve billion, three hundred forty million, two hundred four thousand, fifty-seven".