30243122 has 32 divisors (see below), whose sum is σ = 56391552. Its totient is φ = 11844864.

The previous prime is 30243121. The next prime is 30243127. The reversal of 30243122 is 22134203.

It is a self number, because there is not a number n which added to its sum of digits gives 30243122.

It is not an unprimeable number, because it can be changed into a prime (30243121) 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, 18698 + ... + 20250.

It is an arithmetic number, because the mean of its divisors is an integer number (1762236).

Almost surely, 2^30243122 is an apocalyptic number.

30243122 is a deficient number, since it is larger than the sum of its proper divisors (26148430).

30243122 is a wasteful number, since it uses less digits than its factorization.

30243122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30243122 is about 5499.3746917263. The cubic root of 30243122 is about 311.5603672809.

Adding to 30243122 its reverse (22134203), we get a palindrome (52377325).

The spelling of 30243122 in words is "thirty million, two hundred forty-three thousand, one hundred twenty-two".