2101049543 has 2 divisors, whose sum is σ = 2101049544. Its totient is φ = 2101049542.

The previous prime is 2101049513. The next prime is 2101049579. The reversal of 2101049543 is 3459401012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101049543 - 2¹⁴ = 2101033159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101049513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050524771 + 1050524772.

It is an arithmetic number, because the mean of its divisors is an integer number (1050524772).

Almost surely, 2^2101049543 is an apocalyptic number.

2101049543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101049543 is an equidigital number, since it uses as much as digits as its factorization.

2101049543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2101049543 is about 45837.2069720658. The cubic root of 2101049543 is about 1280.7924664247.

The spelling of 2101049543 in words is "two billion, one hundred one million, forty-nine thousand, five hundred forty-three".