231201031302 has 24 divisors (see below), whose sum is σ = 506970939384. Its totient is φ = 76138491744.

The previous prime is 231201031291. The next prime is 231201031343. The reversal of 231201031302 is 203130102132.

231201031302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77375023 + ... + 77378010.

It is an arithmetic number, because the mean of its divisors is an integer number (21123789141).

Almost surely, 2^231201031302 is an apocalyptic number.

231201031302 is an abundant number, since it is smaller than the sum of its proper divisors (275769908082).

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

231201031302 is a wasteful number, since it uses less digits than its factorization.

231201031302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154753124 (or 154753121 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231201031302 its reverse (203130102132), we get a palindrome (434331133434).

The spelling of 231201031302 in words is "two hundred thirty-one billion, two hundred one million, thirty-one thousand, three hundred two".