231313001004 has 36 divisors (see below), whose sum is σ = 589882279896. Its totient is φ = 76421993088.

The previous prime is 231313000967. The next prime is 231313001021. The reversal of 231313001004 is 400100313132.

231313001004 is a `hidden beast` number, since 231 + 31 + 300 + 100 + 4 = 666.

231313001004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 28426734 + ... + 28434869.

It is an arithmetic number, because the mean of its divisors is an integer number (16385618886).

Almost surely, 2^231313001004 is an apocalyptic number.

It is an amenable number.

231313001004 is an abundant number, since it is smaller than the sum of its proper divisors (358569278892).

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

231313001004 is a wasteful number, since it uses less digits than its factorization.

231313001004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56861726 (or 56861721 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231313001004 its reverse (400100313132), we get a palindrome (631413314136).

The spelling of 231313001004 in words is "two hundred thirty-one billion, three hundred thirteen million, one thousand, four".