21141110242 has 8 divisors (see below), whose sum is σ = 36241903296. Its totient is φ = 9060475812.

The previous prime is 21141110167. The next prime is 21141110297. The reversal of 21141110242 is 24201114112.

It is a happy number.

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, 755039638 + ... + 755039665.

It is an arithmetic number, because the mean of its divisors is an integer number (4530237912).

Almost surely, 2^21141110242 is an apocalyptic number.

21141110242 is a deficient number, since it is larger than the sum of its proper divisors (15100793054).

21141110242 is a wasteful number, since it uses less digits than its factorization.

21141110242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510079312.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21141110242 its reverse (24201114112), we get a palindrome (45342224354).

The spelling of 21141110242 in words is "twenty-one billion, one hundred forty-one million, one hundred ten thousand, two hundred forty-two".