21101134 has 8 divisors (see below), whose sum is σ = 33317640. Its totient is φ = 9995256.

The previous prime is 21101123. The next prime is 21101207. The reversal of 21101134 is 43110112.

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

It is a congruent number.

It is an unprimeable number.

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, 277609 + ... + 277684.

It is an arithmetic number, because the mean of its divisors is an integer number (4164705).

Almost surely, 2^21101134 is an apocalyptic number.

21101134 is a deficient number, since it is larger than the sum of its proper divisors (12216506).

21101134 is a wasteful number, since it uses less digits than its factorization.

21101134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555314.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 21101134 is about 4593.5970654815. The cubic root of 21101134 is about 276.3345990973.

Adding to 21101134 its reverse (43110112), we get a palindrome (64211246).

The spelling of 21101134 in words is "twenty-one million, one hundred one thousand, one hundred thirty-four".