2102111400043 has 8 divisors (see below), whose sum is σ = 2148464862720. Its totient is φ = 2055825757800.

The previous prime is 2102111400023. The next prime is 2102111400049. The reversal of 2102111400043 is 3400041112012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102111400043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102111400049) 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, 16892433 + ... + 17016418.

It is an arithmetic number, because the mean of its divisors is an integer number (268558107840).

Almost surely, 2^{2102111400043} is an apocalyptic number.

2102111400043 is a deficient number, since it is larger than the sum of its proper divisors (46353462677).

2102111400043 is a wasteful number, since it uses less digits than its factorization.

2102111400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33910217.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2102111400043 its reverse (3400041112012), we get a palindrome (5502152512055).

The spelling of 2102111400043 in words is "two trillion, one hundred two billion, one hundred eleven million, four hundred thousand, forty-three".