2124013324545 has 144 divisors (see below), whose sum is σ = 4476058659072. Its totient is φ = 927275247360.

The previous prime is 2124013324493. The next prime is 2124013324579. The reversal of 2124013324545 is 5454233104212.

It is a happy number.

2124013324545 is a `hidden beast` number, since 2 + 1 + 2 + 401 + 3 + 3 + 245 + 4 + 5 = 666.

It is not a de Polignac number, because 2124013324545 - 2⁶ = 2124013324481 is a prime.

It is a super-2 number, since 2×2124013324545² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 31967979 + ... + 32034351.

It is an arithmetic number, because the mean of its divisors is an integer number (31083740688).

Almost surely, 2^{2124013324545} is an apocalyptic number.

It is an amenable number.

2124013324545 is an abundant number, since it is smaller than the sum of its proper divisors (2352045334527).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2124013324545 is a wasteful number, since it uses less digits than its factorization.

2124013324545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67052 (or 67042 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 2124013324545 its reverse (5454233104212), we get a palindrome (7578246428757).

The spelling of 2124013324545 in words is "two trillion, one hundred twenty-four billion, thirteen million, three hundred twenty-four thousand, five hundred forty-five".