30203012 has 18 divisors (see below), whose sum is σ = 61485102. Its totient is φ = 12944064.

The previous prime is 30203009. The next prime is 30203023. The reversal of 30203012 is 21030203.

It can be written as a sum of positive squares in only one way, i.e., 15808576 + 14394436 = 3976^2 + 3794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30202984 and 30203002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76853 + ... + 77244.

It is an arithmetic number, because the mean of its divisors is an integer number (3415839).

Almost surely, 2^30203012 is an apocalyptic number.

It is an amenable number.

30203012 is an abundant number, since it is smaller than the sum of its proper divisors (31282090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30203012 is a wasteful number, since it uses less digits than its factorization.

30203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154115 (or 154106 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30203012 is about 5495.7267035398. The cubic root of 30203012 is about 311.4225704953.

Adding to 30203012 its reverse (21030203), we get a palindrome (51233215).

The spelling of 30203012 in words is "thirty million, two hundred three thousand, twelve".