30121322012 has 12 divisors (see below), whose sum is σ = 53454740976. Its totient is φ = 14848538880.

The previous prime is 30121322009. The next prime is 30121322029. The reversal of 30121322012 is 21022312103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53030213 + ... + 53030780.

It is an arithmetic number, because the mean of its divisors is an integer number (4454561748).

Almost surely, 2^30121322012 is an apocalyptic number.

It is an amenable number.

30121322012 is a deficient number, since it is larger than the sum of its proper divisors (23333418964).

30121322012 is a wasteful number, since it uses less digits than its factorization.

30121322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106061068 (or 106061066 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30121322012 its reverse (21022312103), we get a palindrome (51143634115).

Subtracting from 30121322012 its reverse (21022312103), we obtain a palindrome (9099009909).

The spelling of 30121322012 in words is "thirty billion, one hundred twenty-one million, three hundred twenty-two thousand, twelve".