321230022331 has 4 divisors (see below), whose sum is σ = 321232792464. Its totient is φ = 321227252200.

The previous prime is 321230022329. The next prime is 321230022349. The reversal of 321230022331 is 133220032123.

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 321230022331 - 2¹ = 321230022329 is a prime.

It is a super-2 number, since 2×321230022331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321230022361) 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, 1203160 + ... + 1445701.

It is an arithmetic number, because the mean of its divisors is an integer number (80308198116).

Almost surely, 2^321230022331 is an apocalyptic number.

321230022331 is a deficient number, since it is larger than the sum of its proper divisors (2770133).

321230022331 is a wasteful number, since it uses less digits than its factorization.

321230022331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770132.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 321230022331 its reverse (133220032123), we get a palindrome (454450054454).

The spelling of 321230022331 in words is "three hundred twenty-one billion, two hundred thirty million, twenty-two thousand, three hundred thirty-one".