21102323001 has 8 divisors (see below), whose sum is σ = 29617295520. Its totient is φ = 13327782912.

The previous prime is 21102322999. The next prime is 21102323051. The reversal of 21102323001 is 10032320112.

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

It is not a de Polignac number, because 21102323001 - 2¹ = 21102322999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102323051) 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, 185108040 + ... + 185108153.

It is an arithmetic number, because the mean of its divisors is an integer number (3702161940).

Almost surely, 2^21102323001 is an apocalyptic number.

It is an amenable number.

21102323001 is a deficient number, since it is larger than the sum of its proper divisors (8514972519).

21102323001 is a wasteful number, since it uses less digits than its factorization.

21102323001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370216215.

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

Adding to 21102323001 its reverse (10032320112), we get a palindrome (31134643113).

The spelling of 21102323001 in words is "twenty-one billion, one hundred two million, three hundred twenty-three thousand, one".