20311741441 has 4 divisors (see below), whose sum is σ = 20315474500. Its totient is φ = 20308008384.

The previous prime is 20311741403. The next prime is 20311741447. The reversal of 20311741441 is 14414711302.

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 11336073841 + 8975667600 = 106471^2 + 94740^2 .

It is a cyclic number.

It is not a de Polignac number, because 20311741441 - 2⁷ = 20311741313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20311741447) 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, 1858356 + ... + 1869253.

It is an arithmetic number, because the mean of its divisors is an integer number (5078868625).

Almost surely, 2^20311741441 is an apocalyptic number.

It is an amenable number.

20311741441 is a deficient number, since it is larger than the sum of its proper divisors (3733059).

20311741441 is an equidigital number, since it uses as much as digits as its factorization.

20311741441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733058.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 20311741441 in words is "twenty billion, three hundred eleven million, seven hundred forty-one thousand, four hundred forty-one".