21304103001 has 8 divisors (see below), whose sum is σ = 29900495520. Its totient is φ = 13455222912.

The previous prime is 21304102997. The next prime is 21304103011. The reversal of 21304103001 is 10030140312.

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

It is not a de Polignac number, because 21304103001 - 2² = 21304102997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21304103011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186878040 + ... + 186878153.

It is an arithmetic number, because the mean of its divisors is an integer number (3737561940).

Almost surely, 2^21304103001 is an apocalyptic number.

It is an amenable number.

21304103001 is a deficient number, since it is larger than the sum of its proper divisors (8596392519).

21304103001 is a wasteful number, since it uses less digits than its factorization.

21304103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373756215.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21304103001 its reverse (10030140312), we get a palindrome (31334243313).

The spelling of 21304103001 in words is "twenty-one billion, three hundred four million, one hundred three thousand, one".