2141231563 has 4 divisors (see below), whose sum is σ = 2168335840. Its totient is φ = 2114127288.

The previous prime is 2141231527. The next prime is 2141231633. The reversal of 2141231563 is 3651321412.

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 2141231563 - 2¹⁷ = 2141100491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141231503) 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, 13552020 + ... + 13552177.

It is an arithmetic number, because the mean of its divisors is an integer number (542083960).

Almost surely, 2^2141231563 is an apocalyptic number.

2141231563 is a deficient number, since it is larger than the sum of its proper divisors (27104277).

2141231563 is an equidigital number, since it uses as much as digits as its factorization.

2141231563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27104276.

The product of its digits is 4320, while the sum is 28.

The square root of 2141231563 is about 46273.4433881897. The cubic root of 2141231563 is about 1288.9059014321.

Adding to 2141231563 its reverse (3651321412), we get a palindrome (5792552975).

It can be divided in two parts, 21412 and 31563, that added together give a triangular number (52975 = T₃₂₅).

The spelling of 2141231563 in words is "two billion, one hundred forty-one million, two hundred thirty-one thousand, five hundred sixty-three".