20001102023 has 4 divisors (see below), whose sum is σ = 22858402320. Its totient is φ = 17143801728.

The previous prime is 20001101993. The next prime is 20001102031. The reversal of 20001102023 is 32020110002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32020110002 = 2 ⋅16010055001.

It is a cyclic number.

It is not a de Polignac number, because 20001102023 - 2¹² = 20001097927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001101995 and 20001102013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001102523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428650138 + ... + 1428650151.

It is an arithmetic number, because the mean of its divisors is an integer number (5714600580).

Almost surely, 2^20001102023 is an apocalyptic number.

20001102023 is a deficient number, since it is larger than the sum of its proper divisors (2857300297).

20001102023 is an equidigital number, since it uses as much as digits as its factorization.

20001102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857300296.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20001102023 its reverse (32020110002), we get a palindrome (52021212025).

The spelling of 20001102023 in words is "twenty billion, one million, one hundred two thousand, twenty-three".