20302123133 has 8 divisors (see below), whose sum is σ = 20409830400. Its totient is φ = 20194669728.

The previous prime is 20302123043. The next prime is 20302123141. The reversal of 20302123133 is 33132120302.

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 20302123133 - 2¹² = 20302119037 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 (20302183133) 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, 97988 + ... + 224066.

It is an arithmetic number, because the mean of its divisors is an integer number (2551228800).

Almost surely, 2^20302123133 is an apocalyptic number.

It is an amenable number.

20302123133 is a deficient number, since it is larger than the sum of its proper divisors (107707267).

20302123133 is a wasteful number, since it uses less digits than its factorization.

20302123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126931.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20302123133 its reverse (33132120302), we get a palindrome (53434243435).

The spelling of 20302123133 in words is "twenty billion, three hundred two million, one hundred twenty-three thousand, one hundred thirty-three".