231871610852 has 48 divisors (see below), whose sum is σ = 479818321920. Its totient is φ = 95930083200.

The previous prime is 231871610843. The next prime is 231871610879. The reversal of 231871610852 is 258016178132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5322077 + ... + 5365467.

It is an arithmetic number, because the mean of its divisors is an integer number (9996215040).

Almost surely, 2^231871610852 is an apocalyptic number.

It is an amenable number.

231871610852 is an abundant number, since it is smaller than the sum of its proper divisors (247946711068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231871610852 is a wasteful number, since it uses less digits than its factorization.

231871610852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50012 (or 50010 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

Adding to 231871610852 its reverse (258016178132), we get a palindrome (489887788984).

The spelling of 231871610852 in words is "two hundred thirty-one billion, eight hundred seventy-one million, six hundred ten thousand, eight hundred fifty-two".