220312201023 has 8 divisors (see below), whose sum is σ = 326388446000. Its totient is φ = 146874800664.

The previous prime is 220312201013. The next prime is 220312201051. The reversal of 220312201023 is 320102213022.

It is not a de Polignac number, because 220312201023 - 2⁸ = 220312200767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220312200987 and 220312201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220312201003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4079855548 + ... + 4079855601.

It is an arithmetic number, because the mean of its divisors is an integer number (40798555750).

Almost surely, 2^220312201023 is an apocalyptic number.

220312201023 is a deficient number, since it is larger than the sum of its proper divisors (106076244977).

220312201023 is an equidigital number, since it uses as much as digits as its factorization.

220312201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159711158 (or 8159711152 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220312201023 its reverse (320102213022), we get a palindrome (540414414045).

The spelling of 220312201023 in words is "two hundred twenty billion, three hundred twelve million, two hundred one thousand, twenty-three".