2102311123 has 8 divisors (see below), whose sum is σ = 2372514480. Its totient is φ = 1845288480.

The previous prime is 2102311109. The next prime is 2102311139. The reversal of 2102311123 is 3211132012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102311123 is a prime.

It is a super-2 number, since 2×2102311123² = 8839424115779042258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102311097 and 2102311106.

It is not an unprimeable number, because it can be changed into a prime (2102311153) 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 7 ways as a sum of consecutive naturals, for example, 3294840 + ... + 3295477.

It is an arithmetic number, because the mean of its divisors is an integer number (296564310).

Almost surely, 2^2102311123 is an apocalyptic number.

2102311123 is a deficient number, since it is larger than the sum of its proper divisors (270203357).

2102311123 is a wasteful number, since it uses less digits than its factorization.

2102311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590357.

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

The square root of 2102311123 is about 45850.9664347438. The cubic root of 2102311123 is about 1281.0487667207.

Adding to 2102311123 its reverse (3211132012), we get a palindrome (5313443135).

The spelling of 2102311123 in words is "two billion, one hundred two million, three hundred eleven thousand, one hundred twenty-three".