30203322121 has 24 divisors (see below), whose sum is σ = 35522586504. Its totient is φ = 25604167680.

The previous prime is 30203322059. The next prime is 30203322133. The reversal of 30203322121 is 12122330203.

It can be written as a sum of positive squares in 4 ways, for example, as 1364489721 + 28838832400 = 36939^2 + 169820^2 .

It is not a de Polignac number, because 30203322121 - 2¹³ = 30203313929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626831 + ... + 1645291.

It is an arithmetic number, because the mean of its divisors is an integer number (1480107771).

Almost surely, 2^30203322121 is an apocalyptic number.

It is an amenable number.

30203322121 is a deficient number, since it is larger than the sum of its proper divisors (5319264383).

30203322121 is a wasteful number, since it uses less digits than its factorization.

30203322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18841 (or 18834 counting only the distinct ones).

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

Adding to 30203322121 its reverse (12122330203), we get a palindrome (42325652324).

The spelling of 30203322121 in words is "thirty billion, two hundred three million, three hundred twenty-two thousand, one hundred twenty-one".