213134101 has 4 divisors (see below), whose sum is σ = 218090752. Its totient is φ = 208177452.

The previous prime is 213134099. The next prime is 213134111. The reversal of 213134101 is 101431312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213134101 - 2¹ = 213134099 is a prime.

It is a super-2 number, since 2×213134101² = 90852290018156402, which 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 (213134111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478261 + ... + 2478346.

It is an arithmetic number, because the mean of its divisors is an integer number (54522688).

Almost surely, 2^213134101 is an apocalyptic number.

It is an amenable number.

213134101 is a deficient number, since it is larger than the sum of its proper divisors (4956651).

213134101 is an equidigital number, since it uses as much as digits as its factorization.

213134101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956650.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 213134101 is about 14599.1130210023. The cubic root of 213134101 is about 597.3345664555.

Adding to 213134101 its reverse (101431312), we get a palindrome (314565413).

The spelling of 213134101 in words is "two hundred thirteen million, one hundred thirty-four thousand, one hundred one".