2140123343 has 8 divisors (see below), whose sum is σ = 2271024000. Its totient is φ = 2012377048.

The previous prime is 2140123339. The next prime is 2140123357. The reversal of 2140123343 is 3433210412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140123343 - 2² = 2140123339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140123303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787193 + ... + 789906.

It is an arithmetic number, because the mean of its divisors is an integer number (283878000).

Almost surely, 2^2140123343 is an apocalyptic number.

2140123343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2140123343 is a deficient number, since it is larger than the sum of its proper divisors (130900657).

2140123343 is a wasteful number, since it uses less digits than its factorization.

2140123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577181.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2140123343 is about 46261.4671513993. The cubic root of 2140123343 is about 1288.6835001716.

Adding to 2140123343 its reverse (3433210412), we get a palindrome (5573333755).

It can be divided in two parts, 21401 and 23343, that added together give a palindrome (44744).

The spelling of 2140123343 in words is "two billion, one hundred forty million, one hundred twenty-three thousand, three hundred forty-three".