21303001231001 has 16 divisors (see below), whose sum is σ = 24597954797568. Its totient is φ = 18071857026000.

The previous prime is 21303001230941. The next prime is 21303001231019. The reversal of 21303001231001 is 10013210030312.

It is a cyclic number.

It is not a de Polignac number, because 21303001231001 - 2⁶ = 21303001230937 is a prime.

It is a super-2 number, since 2×21303001231001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303001231091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36898445 + ... + 37471338.

It is an arithmetic number, because the mean of its divisors is an integer number (1537372174848).

Almost surely, 2^{21303001231001} is an apocalyptic number.

It is an amenable number.

21303001231001 is a deficient number, since it is larger than the sum of its proper divisors (3294953566567).

21303001231001 is a wasteful number, since it uses less digits than its factorization.

21303001231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74370212.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21303001231001 its reverse (10013210030312), we get a palindrome (31316211261313).

The spelling of 21303001231001 in words is "twenty-one trillion, three hundred three billion, one million, two hundred thirty-one thousand, one".