231001213104 has 60 divisors (see below), whose sum is σ = 646611207736. Its totient is φ = 76985081856.

The previous prime is 231001213103. The next prime is 231001213133. The reversal of 231001213104 is 401312100132.

231001213104 is a `hidden beast` number, since 231 + 0 + 0 + 121 + 310 + 4 = 666.

231001213104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (231001213103) 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 11 ways as a sum of consecutive naturals, for example, 578352 + ... + 892464.

Almost surely, 2^231001213104 is an apocalyptic number.

231001213104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231001213104 is an abundant number, since it is smaller than the sum of its proper divisors (415609994632).

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

231001213104 is a wasteful number, since it uses less digits than its factorization.

231001213104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319234 (or 319225 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231001213104 its reverse (401312100132), we get a palindrome (632313313236).

The spelling of 231001213104 in words is "two hundred thirty-one billion, one million, two hundred thirteen thousand, one hundred four".