20311232110230 has 16 divisors (see below), whose sum is σ = 48746957064624. Its totient is φ = 5416328562720.

The previous prime is 20311232110223. The next prime is 20311232110231. The reversal of 20311232110230 is 3201123211302.

It is a super-2 number, since 2×20311232110230² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20311232110197 and 20311232110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311232110231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338520535141 + ... + 338520535200.

It is an arithmetic number, because the mean of its divisors is an integer number (3046684816539).

Almost surely, 2^{20311232110230} is an apocalyptic number.

20311232110230 is an abundant number, since it is smaller than the sum of its proper divisors (28435724954394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20311232110230 is a wasteful number, since it uses less digits than its factorization.

20311232110230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677041070351.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20311232110230 its reverse (3201123211302), we get a palindrome (23512355321532).

The spelling of 20311232110230 in words is "twenty trillion, three hundred eleven billion, two hundred thirty-two million, one hundred ten thousand, two hundred thirty".