231213573 has 12 divisors (see below), whose sum is σ = 336379680. Its totient is φ = 153032616.

The previous prime is 231213571. The next prime is 231213601. The reversal of 231213573 is 375312132.

It is not a de Polignac number, because 231213573 - 2¹ = 231213571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231213571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91161 + ... + 93662.

It is an arithmetic number, because the mean of its divisors is an integer number (28031640).

Almost surely, 2^231213573 is an apocalyptic number.

It is an amenable number.

231213573 is a deficient number, since it is larger than the sum of its proper divisors (105166107).

231213573 is a wasteful number, since it uses less digits than its factorization.

231213573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184968 (or 184965 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 231213573 is about 15205.7085661932. The cubic root of 231213573 is about 613.7682823423.

The spelling of 231213573 in words is "two hundred thirty-one million, two hundred thirteen thousand, five hundred seventy-three".