2112142323 has 4 divisors (see below), whose sum is σ = 2816189768. Its totient is φ = 1408094880.

The previous prime is 2112142303. The next prime is 2112142337. The reversal of 2112142323 is 3232412112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2112142323 - 2¹³ = 2112134131 is a prime.

It is a super-2 number, since 2×2112142323² = 8922290385215672658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112142323.

It is not an unprimeable number, because it can be changed into a prime (2112142303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352023718 + ... + 352023723.

It is an arithmetic number, because the mean of its divisors is an integer number (704047442).

Almost surely, 2^2112142323 is an apocalyptic number.

2112142323 is a deficient number, since it is larger than the sum of its proper divisors (704047445).

2112142323 is an equidigital number, since it uses as much as digits as its factorization.

2112142323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704047444.

The product of its digits is 576, while the sum is 21.

The square root of 2112142323 is about 45958.0495996077. The cubic root of 2112142323 is about 1283.0425511684.

Adding to 2112142323 its reverse (3232412112), we get a palindrome (5344554435).

The spelling of 2112142323 in words is "two billion, one hundred twelve million, one hundred forty-two thousand, three hundred twenty-three".