30121213331 has 8 divisors (see below), whose sum is σ = 32894436528. Its totient is φ = 27353812000.

The previous prime is 30121213267. The next prime is 30121213337. The reversal of 30121213331 is 13331212103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121213331 - 2⁶ = 30121213267 is a prime.

It is a super-2 number, since 2×30121213331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121213337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444640 + ... + 1465341.

It is an arithmetic number, because the mean of its divisors is an integer number (4111804566).

Almost surely, 2^30121213331 is an apocalyptic number.

30121213331 is a deficient number, since it is larger than the sum of its proper divisors (2773223197).

30121213331 is a wasteful number, since it uses less digits than its factorization.

30121213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910933.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30121213331 its reverse (13331212103), we get a palindrome (43452425434).

The spelling of 30121213331 in words is "thirty billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-one".