30211423 has 16 divisors (see below), whose sum is σ = 33841152. Its totient is φ = 26740000.

The previous prime is 30211411. The next prime is 30211427. The reversal of 30211423 is 32411203.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30211423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30211397 and 30211406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78690 + ... + 79072.

It is an arithmetic number, because the mean of its divisors is an integer number (2115072).

Almost surely, 2^30211423 is an apocalyptic number.

30211423 is a deficient number, since it is larger than the sum of its proper divisors (3629729).

30211423 is a wasteful number, since it uses less digits than its factorization.

30211423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30211423 is about 5496.4918811911. The cubic root of 30211423 is about 311.4514763555.

Adding to 30211423 its reverse (32411203), we get a palindrome (62622626).

It can be divided in two parts, 3021 and 1423, that added together give a palindrome (4444).

The spelling of 30211423 in words is "thirty million, two hundred eleven thousand, four hundred twenty-three".