20331020232133 has 8 divisors (see below), whose sum is σ = 22649942964600. Its totient is φ = 18119954371008.

The previous prime is 20331020232073. The next prime is 20331020232143. The reversal of 20331020232133 is 33123202013302.

It can be written as a sum of positive squares in 4 ways, for example, as 1134687257089 + 19196332975044 = 1065217^2 + 4381362^2 .

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 20331020232133 - 2²¹ = 20331018134981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331020232098 and 20331020232107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331020232143) 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, 26964217438 + ... + 26964218191.

It is an arithmetic number, because the mean of its divisors is an integer number (2831242870575).

Almost surely, 2^{20331020232133} is an apocalyptic number.

It is an amenable number.

20331020232133 is a deficient number, since it is larger than the sum of its proper divisors (2318922732467).

20331020232133 is a wasteful number, since it uses less digits than its factorization.

20331020232133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53928435671.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20331020232133 its reverse (33123202013302), we get a palindrome (53454222245435).

The spelling of 20331020232133 in words is "twenty trillion, three hundred thirty-one billion, twenty million, two hundred thirty-two thousand, one hundred thirty-three".