231323033220220 has 96 divisors (see below), whose sum is σ = 497102044965120. Its totient is φ = 90380238520320.

The previous prime is 231323033220211. The next prime is 231323033220269. The reversal of 231323033220220 is 22022330323132.

It is a happy number.

231323033220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2396659402 + ... + 2396755918.

It is an arithmetic number, because the mean of its divisors is an integer number (5178146301720).

Almost surely, 2^{231323033220220} is an apocalyptic number.

231323033220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231323033220220 is an abundant number, since it is smaller than the sum of its proper divisors (265779011744900).

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

231323033220220 is a wasteful number, since it uses less digits than its factorization.

231323033220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101623 (or 101621 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 231323033220220 its reverse (22022330323132), we get a palindrome (253345363543352).

The spelling of 231323033220220 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, thirty-three million, two hundred twenty thousand, two hundred twenty".