20530034055233 has 4 divisors (see below), whose sum is σ = 20548546260180. Its totient is φ = 20511521850288.

The previous prime is 20530034055227. The next prime is 20530034055269. The reversal of 20530034055233 is 33255043003502.

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 405586838449 + 20124447216784 = 636857^2 + 4486028^2 .

It is a cyclic number.

It is not a de Polignac number, because 20530034055233 - 2⁶ = 20530034055169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20530034055193 and 20530034055202.

It is not an unprimeable number, because it can be changed into a prime (20530034055733) 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, 9256100810 + ... + 9256103027.

It is an arithmetic number, because the mean of its divisors is an integer number (5137136565045).

Almost surely, 2^{20530034055233} is an apocalyptic number.

It is an amenable number.

20530034055233 is a deficient number, since it is larger than the sum of its proper divisors (18512204947).

20530034055233 is a wasteful number, since it uses less digits than its factorization.

20530034055233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18512204946.

The product of its (nonzero) digits is 162000, while the sum is 35.

Adding to 20530034055233 its reverse (33255043003502), we get a palindrome (53785077058735).

The spelling of 20530034055233 in words is "twenty trillion, five hundred thirty billion, thirty-four million, fifty-five thousand, two hundred thirty-three".