12002020005637 has 2 divisors, whose sum is σ = 12002020005638. Its totient is φ = 12002020005636.

The previous prime is 12002020005587. The next prime is 12002020005667. The reversal of 12002020005637 is 73650002020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8557696025316 + 3444323980321 = 2925354^2 + 1855889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12002020005637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002020005667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001010002818 + 6001010002819.

It is an arithmetic number, because the mean of its divisors is an integer number (6001010002819).

Almost surely, 2^{12002020005637} is an apocalyptic number.

It is an amenable number.

12002020005637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002020005637 is an equidigital number, since it uses as much as digits as its factorization.

12002020005637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 12002020005637 its reverse (73650002020021), we get a palindrome (85652022025658).

The spelling of 12002020005637 in words is "twelve trillion, two billion, twenty million, five thousand, six hundred thirty-seven".