30123223211 has 4 divisors (see below), whose sum is σ = 31432928592. Its totient is φ = 28813517832.

The previous prime is 30123223199. The next prime is 30123223213. The reversal of 30123223211 is 11232232103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11232232103 = 641 ⋅17522983.

It is a cyclic number.

It is not a de Polignac number, because 30123223211 - 2¹⁸ = 30122961067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30123223213) 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, 654852656 + ... + 654852701.

It is an arithmetic number, because the mean of its divisors is an integer number (7858232148).

Almost surely, 2^30123223211 is an apocalyptic number.

30123223211 is a deficient number, since it is larger than the sum of its proper divisors (1309705381).

30123223211 is a wasteful number, since it uses less digits than its factorization.

30123223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309705380.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30123223211 its reverse (11232232103), we get a palindrome (41355455314).

It can be divided in two parts, 3012 and 3223211, that added together give a palindrome (3226223).

The spelling of 30123223211 in words is "thirty billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred eleven".