30523123 has 8 divisors (see below), whose sum is σ = 31286528. Its totient is φ = 29768904.

The previous prime is 30523121. The next prime is 30523153. The reversal of 30523123 is 32132503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30523123 - 2¹ = 30523121 is a prime.

It is a super-2 number, since 2×30523123² = 1863322075346258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30523123.

It is not an unprimeable number, because it can be changed into a prime (30523121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4690 + ... + 9112.

It is an arithmetic number, because the mean of its divisors is an integer number (3910816).

Almost surely, 2^30523123 is an apocalyptic number.

30523123 is a deficient number, since it is larger than the sum of its proper divisors (763405).

30523123 is a wasteful number, since it uses less digits than its factorization.

30523123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 30523123 is about 5524.7735700208. The cubic root of 30523123 is about 312.5189253605.

Adding to 30523123 its reverse (32132503), we get a palindrome (62655626).

The spelling of 30523123 in words is "thirty million, five hundred twenty-three thousand, one hundred twenty-three".