20231332169 has 2 divisors, whose sum is σ = 20231332170. Its totient is φ = 20231332168.

The previous prime is 20231332141. The next prime is 20231332229. The reversal of 20231332169 is 96123313202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19659404944 + 571927225 = 140212^2 + 23915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20231332169 is a prime.

It is a super-2 number, since 2×20231332169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20231332139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115666084 + 10115666085.

It is an arithmetic number, because the mean of its divisors is an integer number (10115666085).

Almost surely, 2^20231332169 is an apocalyptic number.

It is an amenable number.

20231332169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231332169 is an equidigital number, since it uses as much as digits as its factorization.

20231332169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 20231332169 in words is "twenty billion, two hundred thirty-one million, three hundred thirty-two thousand, one hundred sixty-nine".