321331310001231 has 4 divisors (see below), whose sum is σ = 428441746668312. Its totient is φ = 214220873334152.

The previous prime is 321331310001197. The next prime is 321331310001241. The reversal of 321331310001231 is 132100013133123.

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 321331310001231 - 2²⁵ = 321331276446799 is a prime.

It is a super-2 number, since 2×321331310001231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321331310001241) 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, 53555218333536 + ... + 53555218333541.

It is an arithmetic number, because the mean of its divisors is an integer number (107110436667078).

Almost surely, 2^{321331310001231} is an apocalyptic number.

321331310001231 is a deficient number, since it is larger than the sum of its proper divisors (107110436667081).

321331310001231 is a wasteful number, since it uses less digits than its factorization.

321331310001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107110436667080.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 321331310001231 its reverse (132100013133123), we get a palindrome (453431323134354).

The spelling of 321331310001231 in words is "three hundred twenty-one trillion, three hundred thirty-one billion, three hundred ten million, one thousand, two hundred thirty-one".