21341444002 has 4 divisors (see below), whose sum is σ = 32012166006. Its totient is φ = 10670722000.

The previous prime is 21341443997. The next prime is 21341444009. The reversal of 21341444002 is 20044414312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15341547321 + 5999896681 = 123861^2 + 77459^2 .

It is not an unprimeable number, because it can be changed into a prime (21341444009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5335360999 + ... + 5335361002.

Almost surely, 2^21341444002 is an apocalyptic number.

21341444002 is a deficient number, since it is larger than the sum of its proper divisors (10670722004).

21341444002 is a wasteful number, since it uses less digits than its factorization.

21341444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10670722003.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21341444002 its reverse (20044414312), we get a palindrome (41385858314).

The spelling of 21341444002 in words is "twenty-one billion, three hundred forty-one million, four hundred forty-four thousand, two".