20310021231001 has 16 divisors (see below), whose sum is σ = 20427228581760. Its totient is φ = 20193155176320.

The previous prime is 20310021230929. The next prime is 20310021231037. The reversal of 20310021231001 is 10013212001302.

It is a cyclic number.

It is not a de Polignac number, because 20310021231001 - 2²³ = 20310012842393 is a prime.

It is a super-2 number, since 2×20310021231001² (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 (20310021231041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285373861 + ... + 285445021.

It is an arithmetic number, because the mean of its divisors is an integer number (1276701786360).

Almost surely, 2^{20310021231001} is an apocalyptic number.

It is an amenable number.

20310021231001 is a deficient number, since it is larger than the sum of its proper divisors (117207350759).

20310021231001 is a wasteful number, since it uses less digits than its factorization.

20310021231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73536.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20310021231001 its reverse (10013212001302), we get a palindrome (30323233232303).

The spelling of 20310021231001 in words is "twenty trillion, three hundred ten billion, twenty-one million, two hundred thirty-one thousand, one".