320223011131 has 4 divisors (see below), whose sum is σ = 320522566000. Its totient is φ = 319923456264.

The previous prime is 320223011093. The next prime is 320223011183. The reversal of 320223011131 is 131110322023.

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 320223011131 - 2¹⁵ = 320222978363 is a prime.

It is a super-2 number, since 2×320223011131² (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 = 320223011099 and 320223011108.

It is not an unprimeable number, because it can be changed into a prime (320223011231) 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, 149775831 + ... + 149777968.

It is an arithmetic number, because the mean of its divisors is an integer number (80130641500).

Almost surely, 2^320223011131 is an apocalyptic number.

320223011131 is a deficient number, since it is larger than the sum of its proper divisors (299554869).

320223011131 is a wasteful number, since it uses less digits than its factorization.

320223011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299554868.

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

Adding to 320223011131 its reverse (131110322023), we get a palindrome (451333333154).

The spelling of 320223011131 in words is "three hundred twenty billion, two hundred twenty-three million, eleven thousand, one hundred thirty-one".