231325403000040 has 160 divisors (see below), whose sum is σ = 798524176835880. Its totient is φ = 60019563990528.

The previous prime is 231325403000033. The next prime is 231325403000063. The reversal of 231325403000040 is 40000304523132.

231325403000040 is a `hidden beast` number, since 2 + 31 + 325 + 4 + 0 + 300 + 0 + 0 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 231159609076356 + 165793923684 = 15203934^2 + 407178^2 .

It is a super-2 number, since 2×231325403000040² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231325402999968 and 231325403000013.

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 39 ways as a sum of consecutive naturals, for example, 964700787 + ... + 964940546.

Almost surely, 2^{231325403000040} is an apocalyptic number.

231325403000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231325403000040 is an abundant number, since it is smaller than the sum of its proper divisors (567198773835840).

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

231325403000040 is a wasteful number, since it uses less digits than its factorization.

231325403000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929641393 (or 1929641380 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 231325403000040 its reverse (40000304523132), we get a palindrome (271325707523172).

The spelling of 231325403000040 in words is "two hundred thirty-one trillion, three hundred twenty-five billion, four hundred three million, forty", and thus it is an aban number.