320431103011 has 4 divisors (see below), whose sum is σ = 320456404224. Its totient is φ = 320405801800.

The previous prime is 320431102993. The next prime is 320431103053. The reversal of 320431103011 is 110301134023.

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 320431103011 - 2⁷ = 320431102883 is a prime.

It is a super-2 number, since 2×320431103011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320431103011.

It is not an unprimeable number, because it can be changed into a prime (320431103911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12631600 + ... + 12656941.

It is an arithmetic number, because the mean of its divisors is an integer number (80114101056).

Almost surely, 2^320431103011 is an apocalyptic number.

320431103011 is a deficient number, since it is larger than the sum of its proper divisors (25301213).

320431103011 is a wasteful number, since it uses less digits than its factorization.

320431103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25301212.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 320431103011 its reverse (110301134023), we get a palindrome (430732237034).

The spelling of 320431103011 in words is "three hundred twenty billion, four hundred thirty-one million, one hundred three thousand, eleven".