213423134103 has 24 divisors (see below), whose sum is σ = 310234790528. Its totient is φ = 141379262352.

The previous prime is 213423134101. The next prime is 213423134117. The reversal of 213423134103 is 301431324312.

It is a happy number.

213423134103 is a `hidden beast` number, since 2 + 1 + 3 + 423 + 134 + 103 = 666.

It is not a de Polignac number, because 213423134103 - 2¹ = 213423134101 is a prime.

It is a super-2 number, since 2×213423134103² (a number of 23 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 (213423134101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8535726 + ... + 8560692.

Almost surely, 2^213423134103 is an apocalyptic number.

213423134103 is a deficient number, since it is larger than the sum of its proper divisors (96811656425).

213423134103 is a wasteful number, since it uses less digits than its factorization.

213423134103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30963 (or 30960 counting only the distinct ones).

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

Adding to 213423134103 its reverse (301431324312), we get a palindrome (514854458415).

The spelling of 213423134103 in words is "two hundred thirteen billion, four hundred twenty-three million, one hundred thirty-four thousand, one hundred three".