231037201 has 4 divisors (see below), whose sum is σ = 233081892. Its totient is φ = 228992512.

The previous prime is 231037199. The next prime is 231037241. The reversal of 231037201 is 102730132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17438976 + 213598225 = 4176^2 + 14615^2 .

It is a cyclic number.

It is not a de Polignac number, because 231037201 - 2¹ = 231037199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231037241) 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 3 ways as a sum of consecutive naturals, for example, 1022176 + ... + 1022401.

It is an arithmetic number, because the mean of its divisors is an integer number (58270473).

Almost surely, 2^231037201 is an apocalyptic number.

It is an amenable number.

231037201 is a deficient number, since it is larger than the sum of its proper divisors (2044691).

231037201 is a wasteful number, since it uses less digits than its factorization.

231037201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044690.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 231037201 is about 15199.9079273527. The cubic root of 231037201 is about 613.6121798049.

Adding to 231037201 its reverse (102730132), we get a palindrome (333767333).

The spelling of 231037201 in words is "two hundred thirty-one million, thirty-seven thousand, two hundred one".