231231573 has 12 divisors (see below), whose sum is σ = 344775808. Its totient is φ = 149181480.

The previous prime is 231231557. The next prime is 231231613. The reversal of 231231573 is 375132132.

It is not a de Polignac number, because 231231573 - 2⁴ = 231231557 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 (231231503) 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, 414115 + ... + 414672.

Almost surely, 2^231231573 is an apocalyptic number.

It is an amenable number.

231231573 is a deficient number, since it is larger than the sum of its proper divisors (113544235).

231231573 is a wasteful number, since it uses less digits than its factorization.

231231573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828824 (or 828821 counting only the distinct ones).

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

The square root of 231231573 is about 15206.3004376475. The cubic root of 231231573 is about 613.7842092366.

The spelling of 231231573 in words is "two hundred thirty-one million, two hundred thirty-one thousand, five hundred seventy-three".