2123442312 has 32 divisors (see below), whose sum is σ = 5318450880. Its totient is φ = 706501440.

The previous prime is 2123442301. The next prime is 2123442313. The reversal of 2123442312 is 2132443212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2123442313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68788 + ... + 94755.

It is an arithmetic number, because the mean of its divisors is an integer number (166201590).

Almost surely, 2^2123442312 is an apocalyptic number.

It is an amenable number.

2123442312 is an abundant number, since it is smaller than the sum of its proper divisors (3195008568).

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

2123442312 is a wasteful number, since it uses less digits than its factorization.

2123442312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164093 (or 164089 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 2123442312 is about 46080.8236905548. The cubic root of 2123442312 is about 1285.3265809343.

Adding to 2123442312 its reverse (2132443212), we get a palindrome (4255885524).

It can be divided in two parts, 21234 and 42312, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 2123442312 in words is "two billion, one hundred twenty-three million, four hundred forty-two thousand, three hundred twelve".