20012134 has 4 divisors (see below), whose sum is σ = 30018204. Its totient is φ = 10006066.

The previous prime is 20012119. The next prime is 20012171. The reversal of 20012134 is 43121002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003032 + ... + 5003035.

It is an arithmetic number, because the mean of its divisors is an integer number (7504551).

Almost surely, 2^20012134 is an apocalyptic number.

20012134 is a deficient number, since it is larger than the sum of its proper divisors (10006070).

20012134 is a wasteful number, since it uses less digits than its factorization.

20012134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006069.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20012134 is about 4473.4923717382. The cubic root of 20012134 is about 271.4966451340.

Adding to 20012134 its reverse (43121002), we get a palindrome (63133136).

The spelling of 20012134 in words is "twenty million, twelve thousand, one hundred thirty-four".