30121203002 has 24 divisors (see below), whose sum is σ = 50174669748. Its totient is φ = 13550296320.

The previous prime is 30121203001. The next prime is 30121203019. The reversal of 30121203002 is 20030212103.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29556142561 + 565060441 = 171919^2 + 23771^2 .

It is not an unprimeable number, because it can be changed into a prime (30121203001) 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 11 ways as a sum of consecutive naturals, for example, 618113 + ... + 665060.

Almost surely, 2^30121203002 is an apocalyptic number.

30121203002 is a deficient number, since it is larger than the sum of its proper divisors (20053466746).

30121203002 is a wasteful number, since it uses less digits than its factorization.

30121203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283294 (or 1283283 counting only the distinct ones).

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

Adding to 30121203002 its reverse (20030212103), we get a palindrome (50151415105).

The spelling of 30121203002 in words is "thirty billion, one hundred twenty-one million, two hundred three thousand, two".