20132122331 has 4 divisors (see below), whose sum is σ = 20781545664. Its totient is φ = 19482699000.

The previous prime is 20132122327. The next prime is 20132122333. The reversal of 20132122331 is 13322123102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20132122331 - 2² = 20132122327 is a prime.

It is a super-2 number, since 2×20132122331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20132122333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324711620 + ... + 324711681.

It is an arithmetic number, because the mean of its divisors is an integer number (5195386416).

Almost surely, 2^20132122331 is an apocalyptic number.

20132122331 is a deficient number, since it is larger than the sum of its proper divisors (649423333).

20132122331 is an equidigital number, since it uses as much as digits as its factorization.

20132122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649423332.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20132122331 its reverse (13322123102), we get a palindrome (33454245433).

The spelling of 20132122331 in words is "twenty billion, one hundred thirty-two million, one hundred twenty-two thousand, three hundred thirty-one".