2101434043 has 4 divisors (see below), whose sum is σ = 2103350760. Its totient is φ = 2099517328.

The previous prime is 2101434017. The next prime is 2101434133. The reversal of 2101434043 is 3404341012.

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 2101434043 - 2¹⁷ = 2101302971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101434443) 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, 956713 + ... + 958906.

It is an arithmetic number, because the mean of its divisors is an integer number (525837690).

Almost surely, 2^2101434043 is an apocalyptic number.

2101434043 is a deficient number, since it is larger than the sum of its proper divisors (1916717).

2101434043 is a wasteful number, since it uses less digits than its factorization.

2101434043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916716.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2101434043 is about 45841.4009711745. The cubic root of 2101434043 is about 1280.8705916117.

Adding to 2101434043 its reverse (3404341012), we get a palindrome (5505775055).

The spelling of 2101434043 in words is "two billion, one hundred one million, four hundred thirty-four thousand, forty-three".