320300021431 has 32 divisors (see below), whose sum is σ = 354807048960. Its totient is φ = 289007716608.

The previous prime is 320300021413. The next prime is 320300021477. The reversal of 320300021431 is 134120003023.

It is not a de Polignac number, because 320300021431 - 2⁵ = 320300021399 is a prime.

It is a super-2 number, since 2×320300021431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320300021399 and 320300021408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320300021411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 115338915 + ... + 115341691.

It is an arithmetic number, because the mean of its divisors is an integer number (11087720280).

Almost surely, 2^320300021431 is an apocalyptic number.

320300021431 is a deficient number, since it is larger than the sum of its proper divisors (34507027529).

320300021431 is a wasteful number, since it uses less digits than its factorization.

320300021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3954 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320300021431 its reverse (134120003023), we get a palindrome (454420024454).

The spelling of 320300021431 in words is "three hundred twenty billion, three hundred million, twenty-one thousand, four hundred thirty-one".