20312010133 has 8 divisors (see below), whose sum is σ = 20353088768. Its totient is φ = 20270974464.

The previous prime is 20312010119. The next prime is 20312010149. The reversal of 20312010133 is 33101021302.

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 20312010133 - 2²¹ = 20309912981 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 (20312010833) 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, 1036060 + ... + 1055482.

It is an arithmetic number, because the mean of its divisors is an integer number (2544136096).

Almost surely, 2^20312010133 is an apocalyptic number.

It is an amenable number.

20312010133 is a deficient number, since it is larger than the sum of its proper divisors (41078635).

20312010133 is a wasteful number, since it uses less digits than its factorization.

20312010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21483.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20312010133 its reverse (33101021302), we get a palindrome (53413031435).

The spelling of 20312010133 in words is "twenty billion, three hundred twelve million, ten thousand, one hundred thirty-three".