30121330373 has 2 divisors, whose sum is σ = 30121330374. Its totient is φ = 30121330372.

The previous prime is 30121330367. The next prime is 30121330387. The reversal of 30121330373 is 37303312103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30115090369 + 6240004 = 173537^2 + 2498^2 .

It is a cyclic number.

It is not a de Polignac number, because 30121330373 - 2¹⁶ = 30121264837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121330273) 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 as a sum of consecutive naturals, namely, 15060665186 + 15060665187.

It is an arithmetic number, because the mean of its divisors is an integer number (15060665187).

Almost surely, 2^30121330373 is an apocalyptic number.

It is an amenable number.

30121330373 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121330373 is an equidigital number, since it uses as much as digits as its factorization.

30121330373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 26.

Adding to 30121330373 its reverse (37303312103), we get a palindrome (67424642476).

The spelling of 30121330373 in words is "thirty billion, one hundred twenty-one million, three hundred thirty thousand, three hundred seventy-three".