213023142234 has 36 divisors (see below), whose sum is σ = 536905268874. Its totient is φ = 60863754672.

The previous prime is 213023142217. The next prime is 213023142287. The reversal of 213023142234 is 432241320312.

213023142234 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 231 + 422 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 165718197225 + 47304945009 = 407085^2 + 217497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213023142198 and 213023142207.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 120760537 + ... + 120762300.

Almost surely, 2^213023142234 is an apocalyptic number.

213023142234 is an abundant number, since it is smaller than the sum of its proper divisors (323882126640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213023142234 is a wasteful number, since it uses less digits than its factorization.

213023142234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241522859 (or 241522849 counting only the distinct ones).

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

Adding to 213023142234 its reverse (432241320312), we get a palindrome (645264462546).

The spelling of 213023142234 in words is "two hundred thirteen billion, twenty-three million, one hundred forty-two thousand, two hundred thirty-four".