220100131023 has 4 divisors (see below), whose sum is σ = 293466841368. Its totient is φ = 146733420680.

The previous prime is 220100131021. The next prime is 220100131049. The reversal of 220100131023 is 320131001022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220100131023 - 2¹ = 220100131021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220100130993 and 220100131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100131021) 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, 36683355168 + ... + 36683355173.

It is an arithmetic number, because the mean of its divisors is an integer number (73366710342).

Almost surely, 2^220100131023 is an apocalyptic number.

220100131023 is a deficient number, since it is larger than the sum of its proper divisors (73366710345).

220100131023 is an equidigital number, since it uses as much as digits as its factorization.

220100131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73366710344.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 220100131023 its reverse (320131001022), we get a palindrome (540231132045).

The spelling of 220100131023 in words is "two hundred twenty billion, one hundred million, one hundred thirty-one thousand, twenty-three".