30423122 has 4 divisors (see below), whose sum is σ = 45634686. Its totient is φ = 15211560.

The previous prime is 30423109. The next prime is 30423131. The reversal of 30423122 is 22132403.

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

It can be written as a sum of positive squares in only one way, i.e., 17884441 + 12538681 = 4229^2 + 3541^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30423122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7605779 + ... + 7605782.

Almost surely, 2^30423122 is an apocalyptic number.

30423122 is a deficient number, since it is larger than the sum of its proper divisors (15211564).

30423122 is a wasteful number, since it uses less digits than its factorization.

30423122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15211563.

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

The square root of 30423122 is about 5515.7159100157. The cubic root of 30423122 is about 312.1772565521.

Adding to 30423122 its reverse (22132403), we get a palindrome (52555525).

The spelling of 30423122 in words is "thirty million, four hundred twenty-three thousand, one hundred twenty-two".