231020044 has 12 divisors (see below), whose sum is σ = 404417104. Its totient is φ = 115472304.

The previous prime is 231019991. The next prime is 231020047. The reversal of 231020044 is 440020132.

It is not an unprimeable number, because it can be changed into a prime (231020047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7882 + ... + 22894.

Almost surely, 2^231020044 is an apocalyptic number.

It is an amenable number.

231020044 is a deficient number, since it is larger than the sum of its proper divisors (173397060).

231020044 is a wasteful number, since it uses less digits than its factorization.

231020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18864 (or 18862 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 231020044 is about 15199.3435384559. The cubic root of 231020044 is about 613.5969903250.

Adding to 231020044 its reverse (440020132), we get a palindrome (671040176).

The spelling of 231020044 in words is "two hundred thirty-one million, twenty thousand, forty-four".