1201200001237 has 2 divisors, whose sum is σ = 1201200001238. Its totient is φ = 1201200001236.

The previous prime is 1201200001187. The next prime is 1201200001241. The reversal of 1201200001237 is 7321000021021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100203796836 + 100996204401 = 1048906^2 + 317799^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201200001237 - 2⁷ = 1201200001109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201200005237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600600000618 + 600600000619.

It is an arithmetic number, because the mean of its divisors is an integer number (600600000619).

Almost surely, 2^{1201200001237} is an apocalyptic number.

It is an amenable number.

1201200001237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201200001237 is an equidigital number, since it uses as much as digits as its factorization.

1201200001237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 1201200001237 its reverse (7321000021021), we get a palindrome (8522200022258).

The spelling of 1201200001237 in words is "one trillion, two hundred one billion, two hundred million, one thousand, two hundred thirty-seven".