21141014506 has 8 divisors (see below), whose sum is σ = 33380549280. Its totient is φ = 10014164748.

The previous prime is 21141014473. The next prime is 21141014533. The reversal of 21141014506 is 60541014112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278171206 + ... + 278171281.

It is an arithmetic number, because the mean of its divisors is an integer number (4172568660).

Almost surely, 2^21141014506 is an apocalyptic number.

21141014506 is a deficient number, since it is larger than the sum of its proper divisors (12239534774).

21141014506 is a wasteful number, since it uses less digits than its factorization.

21141014506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556342508.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 21141014506 its reverse (60541014112), we get a palindrome (81682028618).

The spelling of 21141014506 in words is "twenty-one billion, one hundred forty-one million, fourteen thousand, five hundred six".