20035020337 has 4 divisors (see below), whose sum is σ = 20103399540. Its totient is φ = 19966641136.

The previous prime is 20035020329. The next prime is 20035020413. The reversal of 20035020337 is 73302053002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18815334561 + 1219685776 = 137169^2 + 34924^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035020337 - 2³ = 20035020329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20035020037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34189162 + ... + 34189747.

It is an arithmetic number, because the mean of its divisors is an integer number (5025849885).

Almost surely, 2^20035020337 is an apocalyptic number.

It is an amenable number.

20035020337 is a deficient number, since it is larger than the sum of its proper divisors (68379203).

20035020337 is an equidigital number, since it uses as much as digits as its factorization.

20035020337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68379202.

The product of its (nonzero) digits is 3780, while the sum is 25.

Adding to 20035020337 its reverse (73302053002), we get a palindrome (93337073339).

The spelling of 20035020337 in words is "twenty billion, thirty-five million, twenty thousand, three hundred thirty-seven".