20533130335 has 4 divisors (see below), whose sum is σ = 24639756408. Its totient is φ = 16426504264.

The previous prime is 20533130269. The next prime is 20533130339. The reversal of 20533130335 is 53303133502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53303133502 = 2 ⋅26651566751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20533130335 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533130339) 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, 2053313029 + ... + 2053313038.

It is an arithmetic number, because the mean of its divisors is an integer number (6159939102).

Almost surely, 2^20533130335 is an apocalyptic number.

20533130335 is a deficient number, since it is larger than the sum of its proper divisors (4106626073).

20533130335 is an equidigital number, since it uses as much as digits as its factorization.

20533130335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106626072.

The product of its (nonzero) digits is 12150, while the sum is 28.

Adding to 20533130335 its reverse (53303133502), we get a palindrome (73836263837).

The spelling of 20533130335 in words is "twenty billion, five hundred thirty-three million, one hundred thirty thousand, three hundred thirty-five".