320000040224431 has 4 divisors (see below), whose sum is σ = 365714331685072. Its totient is φ = 274285748763792.

The previous prime is 320000040224323. The next prime is 320000040224461. The reversal of 320000040224431 is 134422040000023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320000040224431 - 2¹¹ = 320000040222383 is a prime.

It is a super-3 number, since 3×320000040224431³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320000040224396 and 320000040224405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320000040224461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22857145730310 + ... + 22857145730323.

It is an arithmetic number, because the mean of its divisors is an integer number (91428582921268).

Almost surely, 2^{320000040224431} is an apocalyptic number.

320000040224431 is a deficient number, since it is larger than the sum of its proper divisors (45714291460641).

320000040224431 is an equidigital number, since it uses as much as digits as its factorization.

320000040224431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45714291460640.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 320000040224431 its reverse (134422040000023), we get a palindrome (454422080224454).

The spelling of 320000040224431 in words is "three hundred twenty trillion, forty million, two hundred twenty-four thousand, four hundred thirty-one".