20420033133 has 8 divisors (see below), whose sum is σ = 27308968096. Its totient is φ = 13572226800.

The previous prime is 20420033129. The next prime is 20420033141. The reversal of 20420033133 is 33133002402.

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

It is not a de Polignac number, because 20420033133 - 2² = 20420033129 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 (20420033143) 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, 10280998 + ... + 10282983.

It is an arithmetic number, because the mean of its divisors is an integer number (3413621012).

Almost surely, 2^20420033133 is an apocalyptic number.

It is an amenable number.

20420033133 is a deficient number, since it is larger than the sum of its proper divisors (6888934963).

20420033133 is a wasteful number, since it uses less digits than its factorization.

20420033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20564315.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20420033133 its reverse (33133002402), we get a palindrome (53553035535).

The spelling of 20420033133 in words is "twenty billion, four hundred twenty million, thirty-three thousand, one hundred thirty-three".