21034231001 has 8 divisors (see below), whose sum is σ = 24171935424. Its totient is φ = 17929730160.

The previous prime is 21034230979. The next prime is 21034231003. The reversal of 21034231001 is 10013243012.

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

It is a cyclic number.

It is not a de Polignac number, because 21034231001 - 2⁶ = 21034230937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21034231003) 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, 8299535 + ... + 8302068.

It is an arithmetic number, because the mean of its divisors is an integer number (3021491928).

Almost surely, 2^21034231001 is an apocalyptic number.

It is an amenable number.

21034231001 is a deficient number, since it is larger than the sum of its proper divisors (3137704423).

21034231001 is a wasteful number, since it uses less digits than its factorization.

21034231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16601791.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21034231001 its reverse (10013243012), we get a palindrome (31047474013).

The spelling of 21034231001 in words is "twenty-one billion, thirty-four million, two hundred thirty-one thousand, one".