20530042333 has 8 divisors (see below), whose sum is σ = 22325197752. Its totient is φ = 18800165376.

The previous prime is 20530042327. The next prime is 20530042343. The reversal of 20530042333 is 33324003502.

It can be written as a sum of positive squares in 4 ways, for example, as 6580778884 + 13949263449 = 81122^2 + 118107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20530042333 - 2¹⁷ = 20529911261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20530042298 and 20530042307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530042343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16318960 + ... + 16320217.

It is an arithmetic number, because the mean of its divisors is an integer number (2790649719).

Almost surely, 2^20530042333 is an apocalyptic number.

It is an amenable number.

20530042333 is a deficient number, since it is larger than the sum of its proper divisors (1795155419).

20530042333 is a wasteful number, since it uses less digits than its factorization.

20530042333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32639231.

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 20530042333 its reverse (33324003502), we get a palindrome (53854045835).

The spelling of 20530042333 in words is "twenty billion, five hundred thirty million, forty-two thousand, three hundred thirty-three".