231011100312 has 32 divisors (see below), whose sum is σ = 577598921280. Its totient is φ = 76994210720.

The previous prime is 231011100311. The next prime is 231011100367. The reversal of 231011100312 is 213001110132.

It is a happy number.

231011100312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231011100312² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231011100291 and 231011100300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011100311) 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 7 ways as a sum of consecutive naturals, for example, 392898 + ... + 785105.

It is an arithmetic number, because the mean of its divisors is an integer number (18049966290).

Almost surely, 2^231011100312 is an apocalyptic number.

It is an amenable number.

231011100312 is an abundant number, since it is smaller than the sum of its proper divisors (346587820968).

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

231011100312 is a wasteful number, since it uses less digits than its factorization.

231011100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186183 (or 1186179 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 231011100312 its reverse (213001110132), we get a palindrome (444012210444).

The spelling of 231011100312 in words is "two hundred thirty-one billion, eleven million, one hundred thousand, three hundred twelve".