20321132133 has 8 divisors (see below), whose sum is σ = 27105791328. Its totient is φ = 13541947184.

The previous prime is 20321132123. The next prime is 20321132147. The reversal of 20321132133 is 33123112302.

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 20321132133 - 2⁵ = 20321132101 is a prime.

It is a super-2 number, since 2×20321132133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321132123) 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, 1359891 + ... + 1374752.

It is an arithmetic number, because the mean of its divisors is an integer number (3388223916).

Almost surely, 2^20321132133 is an apocalyptic number.

It is an amenable number.

20321132133 is a deficient number, since it is larger than the sum of its proper divisors (6784659195).

20321132133 is a wasteful number, since it uses less digits than its factorization.

20321132133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737123.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20321132133 its reverse (33123112302), we get a palindrome (53444244435).

The spelling of 20321132133 in words is "twenty billion, three hundred twenty-one million, one hundred thirty-two thousand, one hundred thirty-three".