21424153331001 has 8 divisors (see below), whose sum is σ = 28613709004320. Its totient is φ = 14258683272512.

The previous prime is 21424153330949. The next prime is 21424153331017. The reversal of 21424153331001 is 10013335142412.

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 21424153331001 - 2²² = 21424149136697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21424153331001.

It is not an unprimeable number, because it can be changed into a prime (21424153331071) 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, 6021401631 + ... + 6021405188.

It is an arithmetic number, because the mean of its divisors is an integer number (3576713625540).

Almost surely, 2^{21424153331001} is an apocalyptic number.

It is an amenable number.

21424153331001 is a deficient number, since it is larger than the sum of its proper divisors (7189555673319).

21424153331001 is a wasteful number, since it uses less digits than its factorization.

21424153331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042807415.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 21424153331001 its reverse (10013335142412), we get a palindrome (31437488473413).

The spelling of 21424153331001 in words is "twenty-one trillion, four hundred twenty-four billion, one hundred fifty-three million, three hundred thirty-one thousand, one".