231340313400400 has 30 divisors (see below), whose sum is σ = 555795102945422. Its totient is φ = 92536125360000.

The previous prime is 231340313400373. The next prime is 231340313400403. The reversal of 231340313400400 is 4004313043132.

It can be written as a sum of positive squares in 3 ways, for example, as 3058553272384 + 228281760128016 = 1748872^2 + 15108996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231340313400403) 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 5 ways as a sum of consecutive naturals, for example, 289175391351 + ... + 289175392150.

Almost surely, 2^{231340313400400} is an apocalyptic number.

231340313400400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231340313400400 is an abundant number, since it is smaller than the sum of its proper divisors (324454789545022).

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

231340313400400 is a wasteful number, since it uses less digits than its factorization.

231340313400400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578350783519 (or 578350783508 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 231340313400400 its reverse (4004313043132), we get a palindrome (235344626443532).

The spelling of 231340313400400 in words is "two hundred thirty-one trillion, three hundred forty billion, three hundred thirteen million, four hundred thousand, four hundred".