321132013133 has 4 divisors (see below), whose sum is σ = 321237339900. Its totient is φ = 321026686368.

The previous prime is 321132013109. The next prime is 321132013187. The reversal of 321132013133 is 331310231123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59031019369 + 262100993764 = 242963^2 + 511958^2 .

It is a cyclic number.

It is not a de Polignac number, because 321132013133 - 2¹⁰ = 321132012109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321132013099 and 321132013108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321132013193) 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, 52658810 + ... + 52664907.

It is an arithmetic number, because the mean of its divisors is an integer number (80309334975).

Almost surely, 2^321132013133 is an apocalyptic number.

It is an amenable number.

321132013133 is a deficient number, since it is larger than the sum of its proper divisors (105326767).

321132013133 is a wasteful number, since it uses less digits than its factorization.

321132013133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105326766.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 321132013133 its reverse (331310231123), we get a palindrome (652442244256).

The spelling of 321132013133 in words is "three hundred twenty-one billion, one hundred thirty-two million, thirteen thousand, one hundred thirty-three".