231201331302 has 16 divisors (see below), whose sum is σ = 463727602800. Its totient is φ = 76846287072.

The previous prime is 231201331297. The next prime is 231201331303. The reversal of 231201331302 is 203133102132.

231201331302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231201331303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55203573 + ... + 55207760.

It is an arithmetic number, because the mean of its divisors is an integer number (28982975175).

Almost surely, 2^231201331302 is an apocalyptic number.

231201331302 is an abundant number, since it is smaller than the sum of its proper divisors (232526271498).

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

231201331302 is a wasteful number, since it uses less digits than its factorization.

231201331302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110411687.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231201331302 its reverse (203133102132), we get a palindrome (434334433434).

The spelling of 231201331302 in words is "two hundred thirty-one billion, two hundred one million, three hundred thirty-one thousand, three hundred two".