20144334213 has 12 divisors (see below), whose sum is σ = 29105084268. Its totient is φ = 13425996480.

The previous prime is 20144334211. The next prime is 20144334233. The reversal of 20144334213 is 31243344102.

20144334213 is a `hidden beast` number, since 2 + 0 + 1 + 443 + 3 + 4 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8367309729 + 11777024484 = 91473^2 + 108522^2 .

It is not a de Polignac number, because 20144334213 - 2¹ = 20144334211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144334211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260568 + ... + 328913.

It is an arithmetic number, because the mean of its divisors is an integer number (2425423689).

Almost surely, 2^20144334213 is an apocalyptic number.

It is an amenable number.

20144334213 is a deficient number, since it is larger than the sum of its proper divisors (8960750055).

20144334213 is a wasteful number, since it uses less digits than its factorization.

20144334213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593284 (or 593281 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20144334213 its reverse (31243344102), we get a palindrome (51387678315).

The spelling of 20144334213 in words is "twenty billion, one hundred forty-four million, three hundred thirty-four thousand, two hundred thirteen".