30031222321 has 4 divisors (see below), whose sum is σ = 30155833444. Its totient is φ = 29906611200.

The previous prime is 30031222307. The next prime is 30031222327. The reversal of 30031222321 is 12322213003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12322213003 = 17 ⋅724836059.

It can be written as a sum of positive squares in 2 ways, for example, as 11201893921 + 18829328400 = 105839^2 + 137220^2 .

It is a cyclic number.

It is not a de Polignac number, because 30031222321 - 2¹⁵ = 30031189553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30031222327) 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, 62305200 + ... + 62305681.

It is an arithmetic number, because the mean of its divisors is an integer number (7538958361).

Almost surely, 2^30031222321 is an apocalyptic number.

It is an amenable number.

30031222321 is a deficient number, since it is larger than the sum of its proper divisors (124611123).

30031222321 is a wasteful number, since it uses less digits than its factorization.

30031222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124611122.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30031222321 its reverse (12322213003), we get a palindrome (42353435324).

The spelling of 30031222321 in words is "thirty billion, thirty-one million, two hundred twenty-two thousand, three hundred twenty-one".