231231120001 has 32 divisors (see below), whose sum is σ = 276129286400. Its totient is φ = 193447916928.

The previous prime is 231231119989. The next prime is 231231120023. The reversal of 231231120001 is 100021132132.

231231120001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231231120001 - 2⁵ = 231231119969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231231120041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 23549245 + ... + 23559061.

It is an arithmetic number, because the mean of its divisors is an integer number (8629040200).

Almost surely, 2^231231120001 is an apocalyptic number.

It is an amenable number.

231231120001 is a deficient number, since it is larger than the sum of its proper divisors (44898166399).

231231120001 is an equidigital number, since it uses as much as digits as its factorization.

231231120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11478 (or 11464 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231231120001 its reverse (100021132132), we get a palindrome (331252252133).

The spelling of 231231120001 in words is "two hundred thirty-one billion, two hundred thirty-one million, one hundred twenty thousand, one".