20310562173 has 16 divisors (see below), whose sum is σ = 29983574016. Its totient is φ = 12125707440.

The previous prime is 20310562163. The next prime is 20310562199. The reversal of 20310562173 is 37126501302.

It is not a de Polignac number, because 20310562173 - 2⁴ = 20310562157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20310562173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310562163) 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, 4590861 + ... + 4595282.

It is an arithmetic number, because the mean of its divisors is an integer number (1873973376).

Almost surely, 2^20310562173 is an apocalyptic number.

It is an amenable number.

20310562173 is a deficient number, since it is larger than the sum of its proper divisors (9673011843).

20310562173 is a wasteful number, since it uses less digits than its factorization.

20310562173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186224.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 20310562173 in words is "twenty billion, three hundred ten million, five hundred sixty-two thousand, one hundred seventy-three".