12399507530237 has 2 divisors, whose sum is σ = 12399507530238. Its totient is φ = 12399507530236.

The previous prime is 12399507530213. The next prime is 12399507530239. The reversal of 12399507530237 is 73203570599321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6525311871961 + 5874195658276 = 2554469^2 + 2423674^2 .

It is a cyclic number.

It is not a de Polignac number, because 12399507530237 - 2²⁴ = 12399490753021 is a prime.

Together with 12399507530239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12399507530239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6199753765118 + 6199753765119.

It is an arithmetic number, because the mean of its divisors is an integer number (6199753765119).

Almost surely, 2^{12399507530237} is an apocalyptic number.

It is an amenable number.

12399507530237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12399507530237 is an equidigital number, since it uses as much as digits as its factorization.

12399507530237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10716300, while the sum is 56.

The spelling of 12399507530237 in words is "twelve trillion, three hundred ninety-nine billion, five hundred seven million, five hundred thirty thousand, two hundred thirty-seven".