20311230230 has 64 divisors (see below), whose sum is σ = 37898565120. Its totient is φ = 7834109184.

The previous prime is 20311230193. The next prime is 20311230259. The reversal of 20311230230 is 3203211302.

It is a junction number, because it is equal to n+sod(n) for n = 20311230199 and 20311230208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6140237 + ... + 6143543.

It is an arithmetic number, because the mean of its divisors is an integer number (592165080).

Almost surely, 2^20311230230 is an apocalyptic number.

20311230230 is a deficient number, since it is larger than the sum of its proper divisors (17587334890).

20311230230 is a wasteful number, since it uses less digits than its factorization.

20311230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20311230230 its reverse (3203211302), we get a palindrome (23514441532).

The spelling of 20311230230 in words is "twenty billion, three hundred eleven million, two hundred thirty thousand, two hundred thirty".