2101534140243 has 8 divisors (see below), whose sum is σ = 2827752360400. Its totient is φ = 1388169340128.

The previous prime is 2101534140197. The next prime is 2101534140257. The reversal of 2101534140243 is 3420414351012.

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

It is not a de Polignac number, because 2101534140243 - 2¹⁸ = 2101533878099 is a prime.

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 2101534140243.

It is not an unprimeable number, because it can be changed into a prime (2101534140263) 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, 3213354628 + ... + 3213355281.

It is an arithmetic number, because the mean of its divisors is an integer number (353469045050).

Almost surely, 2^{2101534140243} is an apocalyptic number.

2101534140243 is a deficient number, since it is larger than the sum of its proper divisors (726218220157).

2101534140243 is a wasteful number, since it uses less digits than its factorization.

2101534140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6426710021.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2101534140243 its reverse (3420414351012), we get a palindrome (5521948491255).

The spelling of 2101534140243 in words is "two trillion, one hundred one billion, five hundred thirty-four million, one hundred forty thousand, two hundred forty-three".