323211220131 has 32 divisors (see below), whose sum is σ = 467127521280. Its totient is φ = 198111571200.

The previous prime is 323211220117. The next prime is 323211220139. The reversal of 323211220131 is 131022112323.

It is not a de Polignac number, because 323211220131 - 2¹⁷ = 323211089059 is a prime.

It is a super-2 number, since 2×323211220131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 323211220098 and 323211220107.

It is not an unprimeable number, because it can be changed into a prime (323211220139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84321 + ... + 808413.

It is an arithmetic number, because the mean of its divisors is an integer number (14597735040).

Almost surely, 2^323211220131 is an apocalyptic number.

323211220131 is a deficient number, since it is larger than the sum of its proper divisors (143916301149).

323211220131 is a wasteful number, since it uses less digits than its factorization.

323211220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724347.

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

Adding to 323211220131 its reverse (131022112323), we get a palindrome (454233332454).

The spelling of 323211220131 in words is "three hundred twenty-three billion, two hundred eleven million, two hundred twenty thousand, one hundred thirty-one".