12456302434157 has 2 divisors, whose sum is σ = 12456302434158. Its totient is φ = 12456302434156.

The previous prime is 12456302434139. The next prime is 12456302434211. The reversal of 12456302434157 is 75143420365421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12456177307561 + 125126596 = 3529331^2 + 11186^2 .

It is a cyclic number.

It is not a de Polignac number, because 12456302434157 - 2⁴⁰ = 11356790806381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12456302434357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228151217078 + 6228151217079.

It is an arithmetic number, because the mean of its divisors is an integer number (6228151217079).

Almost surely, 2^{12456302434157} is an apocalyptic number.

It is an amenable number.

12456302434157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12456302434157 is an equidigital number, since it uses as much as digits as its factorization.

12456302434157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 47.

Adding to 12456302434157 its reverse (75143420365421), we get a palindrome (87599722799578).

The spelling of 12456302434157 in words is "twelve trillion, four hundred fifty-six billion, three hundred two million, four hundred thirty-four thousand, one hundred fifty-seven".