431444144213 has 16 divisors (see below), whose sum is σ = 439868880000. Its totient is φ = 423080404032.

The previous prime is 431444144161. The next prime is 431444144227. The reversal of 431444144213 is 312441444134.

It is not a de Polignac number, because 431444144213 - 2¹⁰ = 431444143189 is a prime.

It is a super-2 number, since 2×431444144213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431444144233) 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, 23763263 + ... + 23781411.

It is an arithmetic number, because the mean of its divisors is an integer number (27491805000).

Almost surely, 2^431444144213 is an apocalyptic number.

It is an amenable number.

431444144213 is a deficient number, since it is larger than the sum of its proper divisors (8424735787).

431444144213 is a wasteful number, since it uses less digits than its factorization.

431444144213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19804.

The product of its digits is 73728, while the sum is 35.

Adding to 431444144213 its reverse (312441444134), we get a palindrome (743885588347).

The spelling of 431444144213 in words is "four hundred thirty-one billion, four hundred forty-four million, one hundred forty-four thousand, two hundred thirteen".