45020117121 has 32 divisors (see below), whose sum is σ = 69326358528. Its totient is φ = 25455513600.

The previous prime is 45020117101. The next prime is 45020117123. The reversal of 45020117121 is 12171102054.

It is not a de Polignac number, because 45020117121 - 2¹⁴ = 45020100737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45020117091 and 45020117100.

It is not an unprimeable number, because it can be changed into a prime (45020117123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 787326 + ... + 842568.

It is an arithmetic number, because the mean of its divisors is an integer number (2166448704).

Almost surely, 2^45020117121 is an apocalyptic number.

It is an amenable number.

45020117121 is a deficient number, since it is larger than the sum of its proper divisors (24306241407).

45020117121 is a wasteful number, since it uses less digits than its factorization.

45020117121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55661.

The product of its (nonzero) digits is 560, while the sum is 24.

Adding to 45020117121 its reverse (12171102054), we get a palindrome (57191219175).

The spelling of 45020117121 in words is "forty-five billion, twenty million, one hundred seventeen thousand, one hundred twenty-one".