231320400041340 has 72 divisors (see below), whose sum is σ = 720635985014400. Its totient is φ = 60018265954944.

The previous prime is 231320400041221. The next prime is 231320400041351. The reversal of 231320400041340 is 43140004023132.

231320400041340 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 204 + 0 + 0 + 0 + 413 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17366389740 + ... + 17366403059.

It is an arithmetic number, because the mean of its divisors is an integer number (10008833125200).

Almost surely, 2^{231320400041340} is an apocalyptic number.

231320400041340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231320400041340 is an abundant number, since it is smaller than the sum of its proper divisors (489315584973060).

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

231320400041340 is a wasteful number, since it uses less digits than its factorization.

231320400041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34732792851 (or 34732792846 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 231320400041340 its reverse (43140004023132), we get a palindrome (274460404064472).

The spelling of 231320400041340 in words is "two hundred thirty-one trillion, three hundred twenty billion, four hundred million, forty-one thousand, three hundred forty".