2124521120403 has 24 divisors (see below), whose sum is σ = 3348656369136. Its totient is φ = 1287232358400.

The previous prime is 2124521120399. The next prime is 2124521120411. The reversal of 2124521120403 is 3040211254212.

2124521120403 is a `hidden beast` number, since 2 + 1 + 2 + 45 + 211 + 2 + 0 + 403 = 666.

It is not a de Polignac number, because 2124521120403 - 2² = 2124521120399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2124521120413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2608438 + ... + 3324603.

It is an arithmetic number, because the mean of its divisors is an integer number (139527348714).

Almost surely, 2^{2124521120403} is an apocalyptic number.

2124521120403 is a deficient number, since it is larger than the sum of its proper divisors (1224135248733).

2124521120403 is a wasteful number, since it uses less digits than its factorization.

2124521120403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936675 (or 5936672 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 2124521120403 its reverse (3040211254212), we get a palindrome (5164732374615).

The spelling of 2124521120403 in words is "two trillion, one hundred twenty-four billion, five hundred twenty-one million, one hundred twenty thousand, four hundred three".