2220120031323 has 16 divisors (see below), whose sum is σ = 2967712197120. Its totient is φ = 1476307955616.

The previous prime is 2220120031301. The next prime is 2220120031397. The reversal of 2220120031323 is 3231300210222.

It is a happy number.

It is not a de Polignac number, because 2220120031323 - 2⁵ = 2220120031291 is a prime.

It is a super-2 number, since 2×2220120031323² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2220120031323.

It is not an unprimeable number, because it can be changed into a prime (2220120041323) 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 15 ways as a sum of consecutive naturals, for example, 1716808 + ... + 2718026.

It is an arithmetic number, because the mean of its divisors is an integer number (185482012320).

Almost surely, 2^{2220120031323} is an apocalyptic number.

2220120031323 is a deficient number, since it is larger than the sum of its proper divisors (747592165797).

2220120031323 is a wasteful number, since it uses less digits than its factorization.

2220120031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003106.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2220120031323 its reverse (3231300210222), we get a palindrome (5451420241545).

The spelling of 2220120031323 in words is "two trillion, two hundred twenty billion, one hundred twenty million, thirty-one thousand, three hundred twenty-three".