21014303242 has 8 divisors (see below), whose sum is σ = 31965419232. Its totient is φ = 10359163500.

The previous prime is 21014303209. The next prime is 21014303249. The reversal of 21014303242 is 24230341012.

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

It is not an unprimeable number, because it can be changed into a prime (21014303249) 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, 73993884 + ... + 73994167.

It is an arithmetic number, because the mean of its divisors is an integer number (3995677404).

Almost surely, 2^21014303242 is an apocalyptic number.

21014303242 is a deficient number, since it is larger than the sum of its proper divisors (10951115990).

21014303242 is a wasteful number, since it uses less digits than its factorization.

21014303242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147988124.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21014303242 its reverse (24230341012), we get a palindrome (45244644254).

The spelling of 21014303242 in words is "twenty-one billion, fourteen million, three hundred three thousand, two hundred forty-two".