213432023234 has 8 divisors (see below), whose sum is σ = 320151653388. Its totient is φ = 106714805440.

The previous prime is 213432023191. The next prime is 213432023237. The reversal of 213432023234 is 432320234312.

It can be written as a sum of positive squares in 2 ways, for example, as 189960864025 + 23471159209 = 435845^2 + 153203^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 213432023197 and 213432023206.

It is not an unprimeable number, because it can be changed into a prime (213432023237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362747 + ... + 747294.

Almost surely, 2^213432023234 is an apocalyptic number.

213432023234 is a deficient number, since it is larger than the sum of its proper divisors (106719630154).

213432023234 is a wasteful number, since it uses less digits than its factorization.

213432023234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206180.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 213432023234 its reverse (432320234312), we get a palindrome (645752257546).

The spelling of 213432023234 in words is "two hundred thirteen billion, four hundred thirty-two million, twenty-three thousand, two hundred thirty-four".