2102542212343 has 4 divisors (see below), whose sum is σ = 2102546796768. Its totient is φ = 2102537627920.

The previous prime is 2102542212307. The next prime is 2102542212347. The reversal of 2102542212343 is 3432122452012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2102542212343 - 2⁹ = 2102542211831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102542212347) 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, 1516846 + ... + 2550667.

It is an arithmetic number, because the mean of its divisors is an integer number (525636699192).

Almost surely, 2^{2102542212343} is an apocalyptic number.

2102542212343 is a deficient number, since it is larger than the sum of its proper divisors (4584425).

2102542212343 is an equidigital number, since it uses as much as digits as its factorization.

2102542212343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584424.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2102542212343 its reverse (3432122452012), we get a palindrome (5534664664355).

The spelling of 2102542212343 in words is "two trillion, one hundred two billion, five hundred forty-two million, two hundred twelve thousand, three hundred forty-three".