328431415031 has 4 divisors (see below), whose sum is σ = 345717279000. Its totient is φ = 311145551064.

The previous prime is 328431414991. The next prime is 328431415033. The reversal of 328431415031 is 130514134823.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328431415031 is a prime.

It is a super-2 number, since 2×328431415031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328431414982 and 328431415000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328431415033) 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, 8642931956 + ... + 8642931993.

It is an arithmetic number, because the mean of its divisors is an integer number (86429319750).

Almost surely, 2^328431415031 is an apocalyptic number.

328431415031 is a deficient number, since it is larger than the sum of its proper divisors (17285863969).

328431415031 is a wasteful number, since it uses less digits than its factorization.

328431415031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17285863968.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 328431415031 its reverse (130514134823), we get a palindrome (458945549854).

The spelling of 328431415031 in words is "three hundred twenty-eight billion, four hundred thirty-one million, four hundred fifteen thousand, thirty-one".