231043401 has 16 divisors (see below), whose sum is σ = 360302400. Its totient is φ = 145921824.

The previous prime is 231043381. The next prime is 231043409. The reversal of 231043401 is 104340132.

231043401 is a `hidden beast` number, since 231 + 0 + 434 + 0 + 1 = 666.

231043401 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 231043401 - 2⁵ = 231043369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231043409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224676 + ... + 225701.

It is an arithmetic number, because the mean of its divisors is an integer number (22518900).

Almost surely, 2^231043401 is an apocalyptic number.

It is an amenable number.

231043401 is a deficient number, since it is larger than the sum of its proper divisors (129258999).

231043401 is a wasteful number, since it uses less digits than its factorization.

231043401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450405 (or 450399 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231043401 is about 15200.1118745883. Note that the first 3 decimals coincide. The cubic root of 231043401 is about 613.6176686201.

Adding to 231043401 its reverse (104340132), we get a palindrome (335383533).

The spelling of 231043401 in words is "two hundred thirty-one million, forty-three thousand, four hundred one".