321332031011 has 4 divisors (see below), whose sum is σ = 322047693000. Its totient is φ = 320616369024.

The previous prime is 321332030989. The next prime is 321332031023. The reversal of 321332031011 is 110130233123.

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 321332031011 - 2³⁰ = 320258289187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321332031091) 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, 357830321 + ... + 357831218.

It is an arithmetic number, because the mean of its divisors is an integer number (80511923250).

Almost surely, 2^321332031011 is an apocalyptic number.

321332031011 is a deficient number, since it is larger than the sum of its proper divisors (715661989).

321332031011 is an equidigital number, since it uses as much as digits as its factorization.

321332031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715661988.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 321332031011 its reverse (110130233123), we get a palindrome (431462264134).

The spelling of 321332031011 in words is "three hundred twenty-one billion, three hundred thirty-two million, thirty-one thousand, eleven".