20113337 has 2 divisors, whose sum is σ = 20113338. Its totient is φ = 20113336.

The previous prime is 20113319. The next prime is 20113367. The reversal of 20113337 is 73331102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 141376 = 4469^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113337 - 2⁶ = 20113273 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056668 + 10056669.

It is an arithmetic number, because the mean of its divisors is an integer number (10056669).

Almost surely, 2^20113337 is an apocalyptic number.

It is an amenable number.

20113337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113337 is an equidigital number, since it uses as much as digits as its factorization.

20113337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 20113337 is about 4484.7895156852. The cubic root of 20113337 is about 271.9535360728.

Adding to 20113337 its reverse (73331102), we get a palindrome (93444439).

The spelling of 20113337 in words is "twenty million, one hundred thirteen thousand, three hundred thirty-seven".