30233222231 has 4 divisors (see below), whose sum is σ = 30288493752. Its totient is φ = 30177950712.

The previous prime is 30233222197. The next prime is 30233222249. The reversal of 30233222231 is 13222233203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30233222231 is a prime.

It is a super-2 number, since 2×30233222231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30233222197 and 30233222206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30233222251) 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, 27634940 + ... + 27636033.

It is an arithmetic number, because the mean of its divisors is an integer number (7572123438).

Almost surely, 2^30233222231 is an apocalyptic number.

30233222231 is a deficient number, since it is larger than the sum of its proper divisors (55271521).

30233222231 is an equidigital number, since it uses as much as digits as its factorization.

30233222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55271520.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30233222231 its reverse (13222233203), we get a palindrome (43455455434).

The spelling of 30233222231 in words is "thirty billion, two hundred thirty-three million, two hundred twenty-two thousand, two hundred thirty-one".