45545110123 has 4 divisors (see below), whose sum is σ = 45962955280. Its totient is φ = 45127264968.

The previous prime is 45545110111. The next prime is 45545110129. The reversal of 45545110123 is 32101154554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45545110123 is a prime.

It is a super-2 number, since 2×45545110123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45545110129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208922415 + ... + 208922632.

It is an arithmetic number, because the mean of its divisors is an integer number (11490738820).

Almost surely, 2^45545110123 is an apocalyptic number.

45545110123 is a deficient number, since it is larger than the sum of its proper divisors (417845157).

45545110123 is a wasteful number, since it uses less digits than its factorization.

45545110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417845156.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 45545110123 its reverse (32101154554), we get a palindrome (77646264677).

The spelling of 45545110123 in words is "forty-five billion, five hundred forty-five million, one hundred ten thousand, one hundred twenty-three".