20011120332337 has 2 divisors, whose sum is σ = 20011120332338. Its totient is φ = 20011120332336.

The previous prime is 20011120332311. The next prime is 20011120332341. The reversal of 20011120332337 is 73323302111002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15334437278241 + 4676683054096 = 3915921^2 + 2162564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011120332337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20011120339337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005560166168 + 10005560166169.

It is an arithmetic number, because the mean of its divisors is an integer number (10005560166169).

Almost surely, 2^{20011120332337} is an apocalyptic number.

It is an amenable number.

20011120332337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011120332337 is an equidigital number, since it uses as much as digits as its factorization.

20011120332337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 20011120332337 its reverse (73323302111002), we get a palindrome (93334422443339).

The spelling of 20011120332337 in words is "twenty trillion, eleven billion, one hundred twenty million, three hundred thirty-two thousand, three hundred thirty-seven".