120072306545 has 8 divisors (see below), whose sum is σ = 144336488424. Its totient is φ = 95891364864.

The previous prime is 120072306533. The next prime is 120072306551. The reversal of 120072306545 is 545603270021.

It can be written as a sum of positive squares in 4 ways, for example, as 82470054976 + 37602251569 = 287176^2 + 193913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120072306545 - 2³⁰ = 118998564721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20806874 + ... + 20812643.

It is an arithmetic number, because the mean of its divisors is an integer number (18042061053).

Almost surely, 2^120072306545 is an apocalyptic number.

It is an amenable number.

120072306545 is a deficient number, since it is larger than the sum of its proper divisors (24264181879).

120072306545 is an equidigital number, since it uses as much as digits as its factorization.

120072306545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41620099.

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 120072306545 its reverse (545603270021), we get a palindrome (665675576566).

The spelling of 120072306545 in words is "one hundred twenty billion, seventy-two million, three hundred six thousand, five hundred forty-five".