20112002237 has 2 divisors, whose sum is σ = 20112002238. Its totient is φ = 20112002236.

The previous prime is 20112002191. The next prime is 20112002279. The reversal of 20112002237 is 73220021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19875642361 + 236359876 = 140981^2 + 15374^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112002237 - 2¹⁴ = 20111985853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112002297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056001118 + 10056001119.

It is an arithmetic number, because the mean of its divisors is an integer number (10056001119).

Almost surely, 2^20112002237 is an apocalyptic number.

It is an amenable number.

20112002237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112002237 is an equidigital number, since it uses as much as digits as its factorization.

20112002237 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20112002237 its reverse (73220021102), we get a palindrome (93332023339).

The spelling of 20112002237 in words is "twenty billion, one hundred twelve million, two thousand, two hundred thirty-seven".