2123001342 has 144 divisors (see below), whose sum is σ = 5886646272. Its totient is φ = 546769440.

The previous prime is 2123001323. The next prime is 2123001359. The reversal of 2123001342 is 2431003212.

2123001342 is a `hidden beast` number, since 21 + 2 + 300 + 1 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1231293 + ... + 1233015.

It is an arithmetic number, because the mean of its divisors is an integer number (40879488).

Almost surely, 2^2123001342 is an apocalyptic number.

2123001342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123001342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2943323136).

2123001342 is an abundant number, since it is smaller than the sum of its proper divisors (3763644930).

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

2123001342 is a wasteful number, since it uses less digits than its factorization.

2123001342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1873 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123001342 is about 46076.0386969192. The cubic root of 2123001342 is about 1285.2376012466.

Adding to 2123001342 its reverse (2431003212), we get a palindrome (4554004554).

The spelling of 2123001342 in words is "two billion, one hundred twenty-three million, one thousand, three hundred forty-two".