20002133237 has 2 divisors, whose sum is σ = 20002133238. Its totient is φ = 20002133236.

The previous prime is 20002133197. The next prime is 20002133267. The reversal of 20002133237 is 73233120002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19523355076 + 478778161 = 139726^2 + 21881^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002133237 - 2⁸ = 20002132981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002133267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001066618 + 10001066619.

It is an arithmetic number, because the mean of its divisors is an integer number (10001066619).

Almost surely, 2^20002133237 is an apocalyptic number.

It is an amenable number.

20002133237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002133237 is an equidigital number, since it uses as much as digits as its factorization.

20002133237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 23.

Adding to 20002133237 its reverse (73233120002), we get a palindrome (93235253239).

The spelling of 20002133237 in words is "twenty billion, two million, one hundred thirty-three thousand, two hundred thirty-seven".