220120320123 has 64 divisors (see below), whose sum is σ = 376303426560. Its totient is φ = 125857670400.

The previous prime is 220120320113. The next prime is 220120320131. The reversal of 220120320123 is 321023021022.

220120320123 is a `hidden beast` number, since 2 + 201 + 20 + 320 + 123 = 666.

It is not a de Polignac number, because 220120320123 - 2²⁸ = 219851884667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220120320096 and 220120320105.

It is not an unprimeable number, because it can be changed into a prime (220120320103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277953 + ... + 719373.

It is an arithmetic number, because the mean of its divisors is an integer number (5879741040).

Almost surely, 2^220120320123 is an apocalyptic number.

220120320123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

220120320123 is a deficient number, since it is larger than the sum of its proper divisors (156183106437).

220120320123 is a wasteful number, since it uses less digits than its factorization.

220120320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441537 (or 441531 counting only the distinct ones).

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

Adding to 220120320123 its reverse (321023021022), we get a palindrome (541143341145).

The spelling of 220120320123 in words is "two hundred twenty billion, one hundred twenty million, three hundred twenty thousand, one hundred twenty-three".