2311003222120 has 32 divisors (see below), whose sum is σ = 5379059226600. Its totient is φ = 892525381888.

The previous prime is 2311003222093. The next prime is 2311003222123. The reversal of 2311003222120 is 212223001132.

It can be written as a sum of positive squares in 4 ways, for example, as 2284275549924 + 26727672196 = 1511382^2 + 163486^2 .

It is not an unprimeable number, because it can be changed into a prime (2311003222123) 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, 996120919 + ... + 996123238.

Almost surely, 2^{2311003222120} is an apocalyptic number.

2311003222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311003222120 is an abundant number, since it is smaller than the sum of its proper divisors (3068056004480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311003222120 is a wasteful number, since it uses less digits than its factorization.

2311003222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992244197 (or 1992244193 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2311003222120 its reverse (212223001132), we get a palindrome (2523226223252).

The spelling of 2311003222120 in words is "two trillion, three hundred eleven billion, three million, two hundred twenty-two thousand, one hundred twenty".