934120021 has 2 divisors, whose sum is σ = 934120022. Its totient is φ = 934120020.

The previous prime is 934120007. The next prime is 934120049. The reversal of 934120021 is 120021439.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735168996 + 198951025 = 27114^2 + 14105^2 .

It is an emirp because it is prime and its reverse (120021439) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 934120021 - 2⁹ = 934119509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 934119974 and 934120001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (934120001) 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, 467060010 + 467060011.

It is an arithmetic number, because the mean of its divisors is an integer number (467060011).

Almost surely, 2^934120021 is an apocalyptic number.

It is an amenable number.

934120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

934120021 is an equidigital number, since it uses as much as digits as its factorization.

934120021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 934120021 is about 30563.3771203380. The cubic root of 934120021 is about 977.5393010147.

The spelling of 934120021 in words is "nine hundred thirty-four million, one hundred twenty thousand, twenty-one".