231013007 has 4 divisors (see below), whose sum is σ = 231622920. Its totient is φ = 230403096.

The previous prime is 231012979. The next prime is 231013009. The reversal of 231013007 is 700310132.

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

It is a cyclic number.

It is not a de Polignac number, because 231013007 - 2⁸ = 231012751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231013009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304388 + ... + 305145.

It is an arithmetic number, because the mean of its divisors is an integer number (57905730).

Almost surely, 2^231013007 is an apocalyptic number.

231013007 is a deficient number, since it is larger than the sum of its proper divisors (609913).

231013007 is an equidigital number, since it uses as much as digits as its factorization.

231013007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609912.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 231013007 is about 15199.1120464322. The cubic root of 231013007 is about 613.5907600924.

Adding to 231013007 its reverse (700310132), we get a palindrome (931323139).

The spelling of 231013007 in words is "two hundred thirty-one million, thirteen thousand, seven".