20050142333 has 4 divisors (see below), whose sum is σ = 21592460988. Its totient is φ = 18507823680.

The previous prime is 20050142323. The next prime is 20050142347. The reversal of 20050142333 is 33324105002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33324105002 = 2 ⋅16662052501.

It can be written as a sum of positive squares in 2 ways, for example, as 8291559364 + 11758582969 = 91058^2 + 108437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20050142333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20050142299 and 20050142308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050142323) 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, 771159308 + ... + 771159333.

It is an arithmetic number, because the mean of its divisors is an integer number (5398115247).

Almost surely, 2^20050142333 is an apocalyptic number.

It is an amenable number.

20050142333 is a deficient number, since it is larger than the sum of its proper divisors (1542318655).

20050142333 is a wasteful number, since it uses less digits than its factorization.

20050142333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542318654.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20050142333 its reverse (33324105002), we get a palindrome (53374247335).

The spelling of 20050142333 in words is "twenty billion, fifty million, one hundred forty-two thousand, three hundred thirty-three".