12000001230157 has 2 divisors, whose sum is σ = 12000001230158. Its totient is φ = 12000001230156.

The previous prime is 12000001230047. The next prime is 12000001230167. The reversal of 12000001230157 is 75103210000021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11452444149316 + 547557080841 = 3384146^2 + 739971^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000001230157 - 2¹¹ = 12000001228109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000001230167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000000615078 + 6000000615079.

It is an arithmetic number, because the mean of its divisors is an integer number (6000000615079).

Almost surely, 2^{12000001230157} is an apocalyptic number.

It is an amenable number.

12000001230157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000001230157 is an equidigital number, since it uses as much as digits as its factorization.

12000001230157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 12000001230157 its reverse (75103210000021), we get a palindrome (87103211230178).

The spelling of 12000001230157 in words is "twelve trillion, one million, two hundred thirty thousand, one hundred fifty-seven".