30121213337 has 2 divisors, whose sum is σ = 30121213338. Its totient is φ = 30121213336.

The previous prime is 30121213267. The next prime is 30121213351. The reversal of 30121213337 is 73331212103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28300996441 + 1820216896 = 168229^2 + 42664^2 .

It is a cyclic number.

It is not a de Polignac number, because 30121213337 - 2¹⁴ = 30121196953 is a prime.

It is not a weakly prime, because it can be changed into another prime (30121212337) 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 as a sum of consecutive naturals, namely, 15060606668 + 15060606669.

It is an arithmetic number, because the mean of its divisors is an integer number (15060606669).

Almost surely, 2^30121213337 is an apocalyptic number.

It is an amenable number.

30121213337 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121213337 is an equidigital number, since it uses as much as digits as its factorization.

30121213337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 30121213337 in words is "thirty billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-seven".