30203102012 has 12 divisors (see below), whose sum is σ = 55637293320. Its totient is φ = 14306732496.

The previous prime is 30203102009. The next prime is 30203102023. The reversal of 30203102012 is 21020130203.

It is a happy number.

It is a super-2 number, since 2×30203102012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 198704543 + ... + 198704694.

It is an arithmetic number, because the mean of its divisors is an integer number (4636441110).

Almost surely, 2^30203102012 is an apocalyptic number.

It is an amenable number.

30203102012 is a deficient number, since it is larger than the sum of its proper divisors (25434191308).

30203102012 is a wasteful number, since it uses less digits than its factorization.

30203102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397409260 (or 397409258 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30203102012 its reverse (21020130203), we get a palindrome (51223232215).

The spelling of 30203102012 in words is "thirty billion, two hundred three million, one hundred two thousand, twelve".