231340201343340 has 192 divisors, whose sum is σ = 661167541440000. Its totient is φ = 60423675992064.

The previous prime is 231340201343299. The next prime is 231340201343351. The reversal of 231340201343340 is 43343102043132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11424761536 + ... + 11424781784.

It is an arithmetic number, because the mean of its divisors is an integer number (3443580945000).

Almost surely, 2^{231340201343340} is an apocalyptic number.

231340201343340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231340201343340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330583770720000).

231340201343340 is an abundant number, since it is smaller than the sum of its proper divisors (429827340096660).

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

231340201343340 is a wasteful number, since it uses less digits than its factorization.

231340201343340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36384 (or 36382 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 231340201343340 its reverse (43343102043132), we get a palindrome (274683303386472).

The spelling of 231340201343340 in words is "two hundred thirty-one trillion, three hundred forty billion, two hundred one million, three hundred forty-three thousand, three hundred forty".