2141103521 has 16 divisors (see below), whose sum is σ = 2269132800. Its totient is φ = 2014664400.

The previous prime is 2141103499. The next prime is 2141103581. The reversal of 2141103521 is 1253011412.

It is a cyclic number.

It is not a de Polignac number, because 2141103521 - 2¹⁰ = 2141102497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2141103493 and 2141103502.

It is not an unprimeable number, because it can be changed into a prime (2141103581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3248690 + ... + 3249348.

It is an arithmetic number, because the mean of its divisors is an integer number (141820800).

Almost surely, 2^2141103521 is an apocalyptic number.

It is an amenable number.

2141103521 is a deficient number, since it is larger than the sum of its proper divisors (128029279).

2141103521 is a wasteful number, since it uses less digits than its factorization.

2141103521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2141103521 is about 46272.0598309606. The cubic root of 2141103521 is about 1288.8802094609.

Adding to 2141103521 its reverse (1253011412), we get a palindrome (3394114933).

The spelling of 2141103521 in words is "two billion, one hundred forty-one million, one hundred three thousand, five hundred twenty-one".