45442323123 has 16 divisors (see below), whose sum is σ = 64363833600. Its totient is φ = 28437104160.

The previous prime is 45442323103. The next prime is 45442323131. The reversal of 45442323123 is 32132324454.

It is not a de Polignac number, because 45442323123 - 2⁸ = 45442322867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45442323103) 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 15 ways as a sum of consecutive naturals, for example, 3650823 + ... + 3663248.

It is an arithmetic number, because the mean of its divisors is an integer number (4022739600).

Almost surely, 2^45442323123 is an apocalyptic number.

45442323123 is a deficient number, since it is larger than the sum of its proper divisors (18921510477).

45442323123 is a wasteful number, since it uses less digits than its factorization.

45442323123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314202.

The product of its digits is 69120, while the sum is 33.

Adding to 45442323123 its reverse (32132324454), we get a palindrome (77574647577).

The spelling of 45442323123 in words is "forty-five billion, four hundred forty-two million, three hundred twenty-three thousand, one hundred twenty-three".