20332403021091 has 32 divisors (see below), whose sum is σ = 32926274316288. Its totient is φ = 10894723015680.

The previous prime is 20332403021071. The next prime is 20332403021123. The reversal of 20332403021091 is 19012030423302.

It is not a de Polignac number, because 20332403021091 - 2¹⁰ = 20332403020067 is a prime.

It is a super-3 number, since 3×20332403021091³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20332403021071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104983530 + ... + 105177023.

It is an arithmetic number, because the mean of its divisors is an integer number (1028946072384).

Almost surely, 2^{20332403021091} is an apocalyptic number.

20332403021091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20332403021091 is a deficient number, since it is larger than the sum of its proper divisors (12593871295197).

20332403021091 is a wasteful number, since it uses less digits than its factorization.

20332403021091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210160851.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 20332403021091 its reverse (19012030423302), we get a palindrome (39344433444393).

The spelling of 20332403021091 in words is "twenty trillion, three hundred thirty-two billion, four hundred three million, twenty-one thousand, ninety-one".