20021030001031 has 16 divisors (see below), whose sum is σ = 20168794800000. Its totient is φ = 19873528316928.

The previous prime is 20021030001001. The next prime is 20021030001059. The reversal of 20021030001031 is 13010003012002.

It is a cyclic number.

It is not a de Polignac number, because 20021030001031 - 2³⁹ = 19471274187143 is a prime.

It is a super-2 number, since 2×20021030001031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021030001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1552854021 + ... + 1552866913.

It is an arithmetic number, because the mean of its divisors is an integer number (1260549675000).

Almost surely, 2^{20021030001031} is an apocalyptic number.

20021030001031 is a deficient number, since it is larger than the sum of its proper divisors (147764798969).

20021030001031 is a wasteful number, since it uses less digits than its factorization.

20021030001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22218.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20021030001031 its reverse (13010003012002), we get a palindrome (33031033013033).

The spelling of 20021030001031 in words is "twenty trillion, twenty-one billion, thirty million, one thousand, thirty-one".