213421383057 has 16 divisors (see below), whose sum is σ = 284920191360. Its totient is φ = 142101830400.

The previous prime is 213421383001. The next prime is 213421383061. The reversal of 213421383057 is 750383124312.

It is not a de Polignac number, because 213421383057 - 2²² = 213417188753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213421383457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14453044 + ... + 14467802.

It is an arithmetic number, because the mean of its divisors is an integer number (17807511960).

Almost surely, 2^213421383057 is an apocalyptic number.

It is an amenable number.

213421383057 is a deficient number, since it is larger than the sum of its proper divisors (71498808303).

213421383057 is a wasteful number, since it uses less digits than its factorization.

213421383057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20504.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 213421383057 in words is "two hundred thirteen billion, four hundred twenty-one million, three hundred eighty-three thousand, fifty-seven".