431331216213 has 8 divisors (see below), whose sum is σ = 575113796800. Its totient is φ = 287551389888.

The previous prime is 431331216191. The next prime is 431331216257. The reversal of 431331216213 is 312612133134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431331216213 - 2⁸ = 431331215957 is a prime.

It is a super-2 number, since 2×431331216213² (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 (431331216413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290233 + ... + 973086.

It is an arithmetic number, because the mean of its divisors is an integer number (71889224600).

Almost surely, 2^431331216213 is an apocalyptic number.

It is an amenable number.

431331216213 is a deficient number, since it is larger than the sum of its proper divisors (143782580587).

431331216213 is a wasteful number, since it uses less digits than its factorization.

431331216213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377131.

The product of its digits is 7776, while the sum is 30.

Adding to 431331216213 its reverse (312612133134), we get a palindrome (743943349347).

The spelling of 431331216213 in words is "four hundred thirty-one billion, three hundred thirty-one million, two hundred sixteen thousand, two hundred thirteen".