21141130 has 8 divisors (see below), whose sum is σ = 38054052. Its totient is φ = 8456448.

The previous prime is 21141103. The next prime is 21141137. The reversal of 21141130 is 3114112.

It can be written as a sum of positive squares in 2 ways, for example, as 20967241 + 173889 = 4579^2 + 417^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21141130.

It is not an unprimeable number, because it can be changed into a prime (21141137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057047 + ... + 1057066.

Almost surely, 2^21141130 is an apocalyptic number.

21141130 is a deficient number, since it is larger than the sum of its proper divisors (16912922).

21141130 is a wasteful number, since it uses less digits than its factorization.

21141130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114120.

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

The square root of 21141130 is about 4597.9484555615. The cubic root of 21141130 is about 276.5090810782.

Adding to 21141130 its reverse (3114112), we get a palindrome (24255242).

The spelling of 21141130 in words is "twenty-one million, one hundred forty-one thousand, one hundred thirty".