231121201 has 8 divisors (see below), whose sum is σ = 233049600. Its totient is φ = 229198128.

The previous prime is 231121193. The next prime is 231121207. The reversal of 231121201 is 102121132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231121201 - 2³ = 231121193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161250 + ... + 162676.

It is an arithmetic number, because the mean of its divisors is an integer number (29131200).

Almost surely, 2^231121201 is an apocalyptic number.

It is an amenable number.

231121201 is a deficient number, since it is larger than the sum of its proper divisors (1928399).

231121201 is a wasteful number, since it uses less digits than its factorization.

231121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231121201 is about 15202.6708508735. The cubic root of 231121201 is about 613.6865360521.

Adding to 231121201 its reverse (102121132), we get a palindrome (333242333).

The spelling of 231121201 in words is "two hundred thirty-one million, one hundred twenty-one thousand, two hundred one".