20011022031023 has 8 divisors (see below), whose sum is σ = 20026791689520. Its totient is φ = 19995252900480.

The previous prime is 20011022031001. The next prime is 20011022031031. The reversal of 20011022031023 is 32013022011002.

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 20011022031023 - 2⁶ = 20011022030959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011022030992 and 20011022031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011022031043) 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 7 ways as a sum of consecutive naturals, for example, 114906308 + ... + 115080326.

It is an arithmetic number, because the mean of its divisors is an integer number (2503348961190).

Almost surely, 2^{20011022031023} is an apocalyptic number.

20011022031023 is a deficient number, since it is larger than the sum of its proper divisors (15769658497).

20011022031023 is a wasteful number, since it uses less digits than its factorization.

20011022031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263977.

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

Adding to 20011022031023 its reverse (32013022011002), we get a palindrome (52024044042025).

The spelling of 20011022031023 in words is "twenty trillion, eleven billion, twenty-two million, thirty-one thousand, twenty-three".