231403401302232 has 128 divisors (see below), whose sum is σ = 610713096192000. Its totient is φ = 72864216558720.

The previous prime is 231403401302173. The next prime is 231403401302233. The reversal of 231403401302232 is 232203104304132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231403401302232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403401302233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245410569 + ... + 246351687.

It is an arithmetic number, because the mean of its divisors is an integer number (4771196064000).

Almost surely, 2^{231403401302232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231403401302232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305356548096000).

231403401302232 is an abundant number, since it is smaller than the sum of its proper divisors (379309694889768).

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

231403401302232 is a wasteful number, since it uses less digits than its factorization.

231403401302232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942701 (or 942697 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 231403401302232 its reverse (232203104304132), we get a palindrome (463606505606364).

The spelling of 231403401302232 in words is "two hundred thirty-one trillion, four hundred three billion, four hundred one million, three hundred two thousand, two hundred thirty-two".