30101223 has 4 divisors (see below), whose sum is σ = 40134968. Its totient is φ = 20067480.

The previous prime is 30101221. The next prime is 30101251. The reversal of 30101223 is 32210103.

It is a happy number.

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

It is not a de Polignac number, because 30101223 - 2¹ = 30101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30101199 and 30101208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101221) 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, 5016868 + ... + 5016873.

It is an arithmetic number, because the mean of its divisors is an integer number (10033742).

Almost surely, 2^30101223 is an apocalyptic number.

30101223 is a deficient number, since it is larger than the sum of its proper divisors (10033745).

30101223 is a wasteful number, since it uses less digits than its factorization.

30101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033744.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30101223 is about 5486.4581471109. The cubic root of 30101223 is about 311.0723287210.

Adding to 30101223 its reverse (32210103), we get a palindrome (62311326).

The spelling of 30101223 in words is "thirty million, one hundred one thousand, two hundred twenty-three".