2124521053 has 4 divisors (see below), whose sum is σ = 2124736540. Its totient is φ = 2124305568.

The previous prime is 2124521051. The next prime is 2124521057. The reversal of 2124521053 is 3501254212.

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 482812729 + 1641708324 = 21973^2 + 40518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124521053 - 2¹ = 2124521051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124521051) 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 3 ways as a sum of consecutive naturals, for example, 92208 + ... + 112921.

It is an arithmetic number, because the mean of its divisors is an integer number (531184135).

Almost surely, 2^2124521053 is an apocalyptic number.

It is an amenable number.

2124521053 is a deficient number, since it is larger than the sum of its proper divisors (215487).

2124521053 is a wasteful number, since it uses less digits than its factorization.

2124521053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215486.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2124521053 is about 46092.5270841164. The cubic root of 2124521053 is about 1285.5441992399.

Adding to 2124521053 its reverse (3501254212), we get a palindrome (5625775265).

The spelling of 2124521053 in words is "two billion, one hundred twenty-four million, five hundred twenty-one thousand, fifty-three".