2140341141721 has 4 divisors (see below), whose sum is σ = 2192544584244. Its totient is φ = 2088137699200.

The previous prime is 2140341141713. The next prime is 2140341141773. The reversal of 2140341141721 is 1271411430412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122836230400 + 2017504911321 = 350480^2 + 1420389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140341141721 - 2³ = 2140341141713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140341141791) 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, 26101721200 + ... + 26101721281.

It is an arithmetic number, because the mean of its divisors is an integer number (548136146061).

Almost surely, 2^{2140341141721} is an apocalyptic number.

It is an amenable number.

2140341141721 is a deficient number, since it is larger than the sum of its proper divisors (52203442523).

2140341141721 is an equidigital number, since it uses as much as digits as its factorization.

2140341141721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52203442522.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 2140341141721 in words is "two trillion, one hundred forty billion, three hundred forty-one million, one hundred forty-one thousand, seven hundred twenty-one".