20120306755073 has 16 divisors (see below), whose sum is σ = 23429516837760. Its totient is φ = 16919845128576.

The previous prime is 20120306755051. The next prime is 20120306755097. The reversal of 20120306755073 is 37055760302102.

It is a cyclic number.

It is not a de Polignac number, because 20120306755073 - 2⁸ = 20120306754817 is a prime.

It is a super-2 number, since 2×20120306755073² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120306755073.

It is not an unprimeable number, because it can be changed into a prime (20120306755013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7442186 + ... + 9778892.

It is an arithmetic number, because the mean of its divisors is an integer number (1464344802360).

Almost surely, 2^{20120306755073} is an apocalyptic number.

It is an amenable number.

20120306755073 is a deficient number, since it is larger than the sum of its proper divisors (3309210082687).

20120306755073 is a wasteful number, since it uses less digits than its factorization.

20120306755073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359976.

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 20120306755073 in words is "twenty trillion, one hundred twenty billion, three hundred six million, seven hundred fifty-five thousand, seventy-three".