231230073 has 16 divisors (see below), whose sum is σ = 326764800. Its totient is φ = 144942336.

The previous prime is 231230009. The next prime is 231230117. The reversal of 231230073 is 370032132.

231230073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231230073 - 2⁶ = 231230009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231230003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77536 + ... + 80462.

It is an arithmetic number, because the mean of its divisors is an integer number (20422800).

Almost surely, 2^231230073 is an apocalyptic number.

It is an amenable number.

231230073 is a deficient number, since it is larger than the sum of its proper divisors (95534727).

231230073 is a wasteful number, since it uses less digits than its factorization.

231230073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 231230073 is about 15206.2511159062. The cubic root of 231230073 is about 613.7828820270.

It can be divided in two parts, 2312 and 30073, that added together give a triangular number (32385 = T₂₅₄).

The spelling of 231230073 in words is "two hundred thirty-one million, two hundred thirty thousand, seventy-three".