30040123312 has 20 divisors (see below), whose sum is σ = 58746693096. Its totient is φ = 14879686400.

The previous prime is 30040123307. The next prime is 30040123319. The reversal of 30040123312 is 21332104003.

It is a self number, because there is not a number n which added to its sum of digits gives 30040123312.

It is not an unprimeable number, because it can be changed into a prime (30040123319) 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, 8771689 + ... + 8775112.

Almost surely, 2^30040123312 is an apocalyptic number.

It is an amenable number.

30040123312 is a deficient number, since it is larger than the sum of its proper divisors (28706569784).

30040123312 is a wasteful number, since it uses less digits than its factorization.

30040123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546916 (or 17546910 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30040123312 its reverse (21332104003), we get a palindrome (51372227315).

The spelling of 30040123312 in words is "thirty billion, forty million, one hundred twenty-three thousand, three hundred twelve".