220101231323 has 4 divisors (see below), whose sum is σ = 222370316280. Its totient is φ = 217832146368.

The previous prime is 220101231277. The next prime is 220101231331. The reversal of 220101231323 is 323132101022.

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 220101231323 - 2²⁶ = 220034122459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220101231295 and 220101231304.

It is not an unprimeable number, because it can be changed into a prime (220101531323) 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, 1134542333 + ... + 1134542526.

It is an arithmetic number, because the mean of its divisors is an integer number (55592579070).

Almost surely, 2^220101231323 is an apocalyptic number.

220101231323 is a deficient number, since it is larger than the sum of its proper divisors (2269084957).

220101231323 is an equidigital number, since it uses as much as digits as its factorization.

220101231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269084956.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 220101231323 its reverse (323132101022), we get a palindrome (543233332345).

The spelling of 220101231323 in words is "two hundred twenty billion, one hundred one million, two hundred thirty-one thousand, three hundred twenty-three".