231104210240 has 28 divisors (see below), whose sum is σ = 550316901396. Its totient is φ = 92441683968.

The previous prime is 231104210203. The next prime is 231104210263. The reversal of 231104210240 is 42012401132.

It can be written as a sum of positive squares in 2 ways, for example, as 147708011584 + 83396198656 = 384328^2 + 288784^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361100009 + ... + 361100648.

Almost surely, 2^231104210240 is an apocalyptic number.

231104210240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231104210240 is an abundant number, since it is smaller than the sum of its proper divisors (319212691156).

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

231104210240 is an equidigital number, since it uses as much as digits as its factorization.

231104210240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722200674 (or 722200664 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 231104210240 its reverse (42012401132), we get a palindrome (273116611372).

The spelling of 231104210240 in words is "two hundred thirty-one billion, one hundred four million, two hundred ten thousand, two hundred forty".