231030106 has 4 divisors (see below), whose sum is σ = 346545162. Its totient is φ = 115515052.

The previous prime is 231030089. The next prime is 231030143. The reversal of 231030106 is 601030132.

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

It can be written as a sum of positive squares in only one way, i.e., 218005225 + 13024881 = 14765^2 + 3609^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231030106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57757525 + ... + 57757528.

Almost surely, 2^231030106 is an apocalyptic number.

231030106 is a deficient number, since it is larger than the sum of its proper divisors (115515056).

231030106 is a wasteful number, since it uses less digits than its factorization.

231030106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115515055.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 231030106 is about 15199.6745359892. The cubic root of 231030106 is about 613.6058985323.

Adding to 231030106 its reverse (601030132), we get a palindrome (832060238).

The spelling of 231030106 in words is "two hundred thirty-one million, thirty thousand, one hundred six".