231210113 has 4 divisors (see below), whose sum is σ = 231399168. Its totient is φ = 231021060.

The previous prime is 231210103. The next prime is 231210131. The reversal of 231210113 is 311012132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231210113 - 2¹⁰ = 231209089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231210103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92681 + ... + 95142.

It is an arithmetic number, because the mean of its divisors is an integer number (57849792).

Almost surely, 2^231210113 is an apocalyptic number.

It is an amenable number.

231210113 is a deficient number, since it is larger than the sum of its proper divisors (189055).

231210113 is a wasteful number, since it uses less digits than its factorization.

231210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189054.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 231210113 is about 15205.5947927071. The cubic root of 231210113 is about 613.7652207446.

Adding to 231210113 its reverse (311012132), we get a palindrome (542222245).

The spelling of 231210113 in words is "two hundred thirty-one million, two hundred ten thousand, one hundred thirteen".