20323211147 has 2 divisors, whose sum is σ = 20323211148. Its totient is φ = 20323211146.

The previous prime is 20323211141. The next prime is 20323211179. The reversal of 20323211147 is 74111232302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323211147 - 2⁸ = 20323210891 is a prime.

It is a super-2 number, since 2×20323211147² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20323211141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161605573 + 10161605574.

It is an arithmetic number, because the mean of its divisors is an integer number (10161605574).

Almost surely, 2^20323211147 is an apocalyptic number.

20323211147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323211147 is an equidigital number, since it uses as much as digits as its factorization.

20323211147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 20323211147 its reverse (74111232302), we get a palindrome (94434443449).

The spelling of 20323211147 in words is "twenty billion, three hundred twenty-three million, two hundred eleven thousand, one hundred forty-seven".