2112123310 has 32 divisors (see below), whose sum is σ = 4281237504. Its totient is φ = 743268000.

The previous prime is 2112123289. The next prime is 2112123313. The reversal of 2112123310 is 133212112.

It is a super-2 number, since 2×2112123310² = 8922129753290712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112123313) 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, 306286 + ... + 313105.

It is an arithmetic number, because the mean of its divisors is an integer number (133788672).

Almost surely, 2^2112123310 is an apocalyptic number.

2112123310 is an abundant number, since it is smaller than the sum of its proper divisors (2169114194).

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

2112123310 is a wasteful number, since it uses less digits than its factorization.

2112123310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619440.

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

The square root of 2112123310 is about 45957.8427474572. The cubic root of 2112123310 is about 1283.0387012762.

Adding to 2112123310 its reverse (133212112), we get a palindrome (2245335422).

The spelling of 2112123310 in words is "two billion, one hundred twelve million, one hundred twenty-three thousand, three hundred ten".