213431201433 has 6 divisors (see below), whose sum is σ = 308289513194. Its totient is φ = 142287467616.

The previous prime is 213431201411. The next prime is 213431201441. The reversal of 213431201433 is 334102134312.

It is a happy number.

213431201433 is a `hidden beast` number, since 21 + 3 + 4 + 3 + 1 + 201 + 433 = 666.

It can be written as a sum of positive squares in only one way, i.e., 208384946064 + 5046255369 = 456492^2 + 71037^2 .

It is not a de Polignac number, because 213431201433 - 2¹² = 213431197337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213431201397 and 213431201406.

It is not an unprimeable number, because it can be changed into a prime (213431208433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11857288960 + ... + 11857288977.

Almost surely, 2^213431201433 is an apocalyptic number.

It is an amenable number.

213431201433 is a deficient number, since it is larger than the sum of its proper divisors (94858311761).

213431201433 is a wasteful number, since it uses less digits than its factorization.

213431201433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23714577943 (or 23714577940 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 213431201433 its reverse (334102134312), we get a palindrome (547533335745).

The spelling of 213431201433 in words is "two hundred thirteen billion, four hundred thirty-one million, two hundred one thousand, four hundred thirty-three".