21141002 has 16 divisors (see below), whose sum is σ = 33244992. Its totient is φ = 10063680.

The previous prime is 21140957. The next prime is 21141007. The reversal of 21141002 is 20014112.

It is not an unprimeable number, because it can be changed into a prime (21141007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10133 + ... + 12039.

It is an arithmetic number, because the mean of its divisors is an integer number (2077812).

Almost surely, 2^21141002 is an apocalyptic number.

21141002 is a deficient number, since it is larger than the sum of its proper divisors (12103990).

21141002 is a wasteful number, since it uses less digits than its factorization.

21141002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 21141002 is about 4597.9345362891. The cubic root of 21141002 is about 276.5085230312.

Adding to 21141002 its reverse (20014112), we get a palindrome (41155114).

The spelling of 21141002 in words is "twenty-one million, one hundred forty-one thousand, two".