20723062723305 has 16 divisors (see below), whose sum is σ = 33171682800960. Its totient is φ = 11047372637888.

The previous prime is 20723062723303. The next prime is 20723062723313. The reversal of 20723062723305 is 50332726032702.

It is a cyclic number.

It is not a de Polignac number, because 20723062723305 - 2¹ = 20723062723303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20723062723303) 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, 307932810 + ... + 308000099.

It is an arithmetic number, because the mean of its divisors is an integer number (2073230175060).

Almost surely, 2^{20723062723305} is an apocalyptic number.

It is an amenable number.

20723062723305 is a deficient number, since it is larger than the sum of its proper divisors (12448620077655).

20723062723305 is a wasteful number, since it uses less digits than its factorization.

20723062723305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615935160.

The product of its (nonzero) digits is 635040, while the sum is 42.

The spelling of 20723062723305 in words is "twenty trillion, seven hundred twenty-three billion, sixty-two million, seven hundred twenty-three thousand, three hundred five".