220311010123 has 4 divisors (see below), whose sum is σ = 220347449280. Its totient is φ = 220274570968.

The previous prime is 220311010091. The next prime is 220311010163. The reversal of 220311010123 is 321010113022.

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 220311010123 - 2⁵ = 220311010091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220311010097 and 220311010106.

It is not an unprimeable number, because it can be changed into a prime (220311010163) 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, 18210508 + ... + 18222601.

It is an arithmetic number, because the mean of its divisors is an integer number (55086862320).

Almost surely, 2^220311010123 is an apocalyptic number.

220311010123 is a deficient number, since it is larger than the sum of its proper divisors (36439157).

220311010123 is an equidigital number, since it uses as much as digits as its factorization.

220311010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36439156.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 220311010123 its reverse (321010113022), we get a palindrome (541321123145).

The spelling of 220311010123 in words is "two hundred twenty billion, three hundred eleven million, ten thousand, one hundred twenty-three".