220131023 has 8 divisors (see below), whose sum is σ = 254610048. Its totient is φ = 186409944.

The previous prime is 220130987. The next prime is 220131047. The reversal of 220131023 is 320131022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220131023 - 2⁸ = 220130767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220130989 and 220131007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131073) 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 7 ways as a sum of consecutive naturals, for example, 188861 + ... + 190022.

It is an arithmetic number, because the mean of its divisors is an integer number (31826256).

Almost surely, 2^220131023 is an apocalyptic number.

220131023 is a deficient number, since it is larger than the sum of its proper divisors (34479025).

220131023 is an equidigital number, since it uses as much as digits as its factorization.

220131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378973.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220131023 is about 14836.8131012020. The cubic root of 220131023 is about 603.8008924803.

Adding to 220131023 its reverse (320131022), we get a palindrome (540262045).

Subtracting 220131023 from its reverse (320131022), we obtain a palindrome (99999999).

The spelling of 220131023 in words is "two hundred twenty million, one hundred thirty-one thousand, twenty-three".