605074111021 has 2 divisors, whose sum is σ = 605074111022. Its totient is φ = 605074111020.

The previous prime is 605074111009. The next prime is 605074111043. The reversal of 605074111021 is 120111470506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600795512100 + 4278598921 = 775110^2 + 65411^2 .

It is a cyclic number.

It is not a de Polignac number, because 605074111021 - 2¹¹ = 605074108973 is a prime.

It is a super-2 number, since 2×605074111021² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605074111091) 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, 302537055510 + 302537055511.

It is an arithmetic number, because the mean of its divisors is an integer number (302537055511).

Almost surely, 2^605074111021 is an apocalyptic number.

It is an amenable number.

605074111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

605074111021 is an equidigital number, since it uses as much as digits as its factorization.

605074111021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 605074111021 its reverse (120111470506), we get a palindrome (725185581527).

The spelling of 605074111021 in words is "six hundred five billion, seventy-four million, one hundred eleven thousand, twenty-one".