4213121057 has 2 divisors, whose sum is σ = 4213121058. Its totient is φ = 4213121056.

The previous prime is 4213121053. The next prime is 4213121149. The reversal of 4213121057 is 7501213124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4110220321 + 102900736 = 64111^2 + 10144^2 .

It is a cyclic number.

It is not a de Polignac number, because 4213121057 - 2² = 4213121053 is a prime.

It is not a weakly prime, because it can be changed into another prime (4213121053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106560528 + 2106560529.

It is an arithmetic number, because the mean of its divisors is an integer number (2106560529).

Almost surely, 2^4213121057 is an apocalyptic number.

It is an amenable number.

4213121057 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213121057 is an equidigital number, since it uses as much as digits as its factorization.

4213121057 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 26.

The square root of 4213121057 is about 64908.5591967654. The cubic root of 4213121057 is about 1615.1070493634.

The spelling of 4213121057 in words is "four billion, two hundred thirteen million, one hundred twenty-one thousand, fifty-seven".