2002001201237 has 2 divisors, whose sum is σ = 2002001201238. Its totient is φ = 2002001201236.

The previous prime is 2002001201147. The next prime is 2002001201243. The reversal of 2002001201237 is 7321021002002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1912160730481 + 89840470756 = 1382809^2 + 299734^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002001201237 - 2²⁴ = 2001984424021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002001201297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000600618 + 1001000600619.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000600619).

Almost surely, 2^{2002001201237} is an apocalyptic number.

It is an amenable number.

2002001201237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002001201237 is an equidigital number, since it uses as much as digits as its factorization.

2002001201237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 2002001201237 its reverse (7321021002002), we get a palindrome (9323022203239).

The spelling of 2002001201237 in words is "two trillion, two billion, one million, two hundred one thousand, two hundred thirty-seven".