20869230331 has 2 divisors, whose sum is σ = 20869230332. Its totient is φ = 20869230330.

The previous prime is 20869230329. The next prime is 20869230373. The reversal of 20869230331 is 13303296802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20869230331 - 2¹ = 20869230329 is a prime.

It is a super-2 number, since 2×20869230331² (a number of 21 digits) contains 22 as substring.

Together with 20869230329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20869230301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10434615165 + 10434615166.

It is an arithmetic number, because the mean of its divisors is an integer number (10434615166).

Almost surely, 2^20869230331 is an apocalyptic number.

20869230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20869230331 is an equidigital number, since it uses as much as digits as its factorization.

20869230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 20869230331 in words is "twenty billion, eight hundred sixty-nine million, two hundred thirty thousand, three hundred thirty-one".