21243414002 has 8 divisors (see below), whose sum is σ = 31918320000. Its totient is φ = 10603974004.

The previous prime is 21243413987. The next prime is 21243414007. The reversal of 21243414002 is 20041434212.

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 (21243414007) 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, 8865002 + ... + 8867397.

It is an arithmetic number, because the mean of its divisors is an integer number (3989790000).

Almost surely, 2^21243414002 is an apocalyptic number.

21243414002 is a deficient number, since it is larger than the sum of its proper divisors (10674905998).

21243414002 is a wasteful number, since it uses less digits than its factorization.

21243414002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17733000.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21243414002 its reverse (20041434212), we get a palindrome (41284848214).

The spelling of 21243414002 in words is "twenty-one billion, two hundred forty-three million, four hundred fourteen thousand, two".