320311222131 has 8 divisors (see below), whose sum is σ = 428454883584. Its totient is φ = 212854187720.

The previous prime is 320311222117. The next prime is 320311222141. The reversal of 320311222131 is 131222113023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320311222131 - 2⁶ = 320311222067 is a prime.

It is a super-2 number, since 2×320311222131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320311222098 and 320311222107.

It is not an unprimeable number, because it can be changed into a prime (320311222141) 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 7 ways as a sum of consecutive naturals, for example, 171655671 + ... + 171657536.

It is an arithmetic number, because the mean of its divisors is an integer number (53556860448).

Almost surely, 2^320311222131 is an apocalyptic number.

320311222131 is a deficient number, since it is larger than the sum of its proper divisors (108143661453).

320311222131 is a wasteful number, since it uses less digits than its factorization.

320311222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343313521.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 320311222131 its reverse (131222113023), we get a palindrome (451533335154).

The spelling of 320311222131 in words is "three hundred twenty billion, three hundred eleven million, two hundred twenty-two thousand, one hundred thirty-one".