231201112004 has 24 divisors (see below), whose sum is σ = 435425052888. Its totient is φ = 107016906240.

The previous prime is 231201111989. The next prime is 231201112027. The reversal of 231201112004 is 400211102132.

It can be written as a sum of positive squares in 4 ways, for example, as 13670286400 + 217530825604 = 116920^2 + 466402^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27864839 + ... + 27873134.

It is an arithmetic number, because the mean of its divisors is an integer number (18142710537).

Almost surely, 2^231201112004 is an apocalyptic number.

It is an amenable number.

231201112004 is a deficient number, since it is larger than the sum of its proper divisors (204223940884).

231201112004 is a wasteful number, since it uses less digits than its factorization.

231201112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55738055 (or 55738053 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 231201112004 its reverse (400211102132), we get a palindrome (631412214136).

The spelling of 231201112004 in words is "two hundred thirty-one billion, two hundred one million, one hundred twelve thousand, four".