30103012 has 12 divisors (see below), whose sum is σ = 53544316. Its totient is φ = 14804640.

The previous prime is 30103009. The next prime is 30103019. The reversal of 30103012 is 21030103.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 23872996 = 2496^2 + 4886^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30103012.

It is not an unprimeable number, because it can be changed into a prime (30103019) 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, 61443 + ... + 61930.

Almost surely, 2^30103012 is an apocalyptic number.

It is an amenable number.

30103012 is a deficient number, since it is larger than the sum of its proper divisors (23441304).

30103012 is a wasteful number, since it uses less digits than its factorization.

30103012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123438 (or 123436 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30103012 is about 5486.6211824765. The cubic root of 30103012 is about 311.0784912322.

Adding to 30103012 its reverse (21030103), we get a palindrome (51133115).

The spelling of 30103012 in words is "thirty million, one hundred three thousand, twelve".