20043352331 has 2 divisors, whose sum is σ = 20043352332. Its totient is φ = 20043352330.

The previous prime is 20043352309. The next prime is 20043352379. The reversal of 20043352331 is 13325334002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20043352331 - 2⁶ = 20043352267 is a prime.

It is a super-2 number, since 2×20043352331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20043352331.

It is not a weakly prime, because it can be changed into another prime (20043352391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021676165 + 10021676166.

It is an arithmetic number, because the mean of its divisors is an integer number (10021676166).

Almost surely, 2^20043352331 is an apocalyptic number.

20043352331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043352331 is an equidigital number, since it uses as much as digits as its factorization.

20043352331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20043352331 its reverse (13325334002), we get a palindrome (33368686333).

The spelling of 20043352331 in words is "twenty billion, forty-three million, three hundred fifty-two thousand, three hundred thirty-one".