320130433431 has 24 divisors (see below), whose sum is σ = 482540737536. Its totient is φ = 204130441680.

The previous prime is 320130433429. The next prime is 320130433481. The reversal of 320130433431 is 134334031023.

320130433431 is a `hidden beast` number, since 3 + 20 + 1 + 304 + 334 + 3 + 1 = 666.

It is not a de Polignac number, because 320130433431 - 2¹ = 320130433429 is a prime.

It is a super-2 number, since 2×320130433431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320130433395 and 320130433404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320130433481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6323686 + ... + 6374108.

It is an arithmetic number, because the mean of its divisors is an integer number (20105864064).

Almost surely, 2^320130433431 is an apocalyptic number.

320130433431 is a deficient number, since it is larger than the sum of its proper divisors (162410304105).

320130433431 is a wasteful number, since it uses less digits than its factorization.

320130433431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81123 (or 81120 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 320130433431 its reverse (134334031023), we get a palindrome (454464464454).

The spelling of 320130433431 in words is "three hundred twenty billion, one hundred thirty million, four hundred thirty-three thousand, four hundred thirty-one".