20311110220232 has 16 divisors (see below), whose sum is σ = 41012818714140. Its totient is φ = 9374358563136.

The previous prime is 20311110220229. The next prime is 20311110220277. The reversal of 20311110220232 is 23202201111302.

It can be written as a sum of positive squares in 2 ways, for example, as 17614926516196 + 2696183704036 = 4197014^2 + 1642006^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97649568263 + ... + 97649568470.

Almost surely, 2^{20311110220232} is an apocalyptic number.

It is an amenable number.

20311110220232 is an abundant number, since it is smaller than the sum of its proper divisors (20701708493908).

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

20311110220232 is a wasteful number, since it uses less digits than its factorization.

20311110220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195299136752 (or 195299136748 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20311110220232 its reverse (23202201111302), we get a palindrome (43513311331534).

The spelling of 20311110220232 in words is "twenty trillion, three hundred eleven billion, one hundred ten million, two hundred twenty thousand, two hundred thirty-two".