20473123061 has 4 divisors (see below), whose sum is σ = 20908721472. Its totient is φ = 20037524652.

The previous prime is 20473123049. The next prime is 20473123081. The reversal of 20473123061 is 16032137402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20473123061 - 2⁶ = 20473122997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473123081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217799135 + ... + 217799228.

It is an arithmetic number, because the mean of its divisors is an integer number (5227180368).

Almost surely, 2^20473123061 is an apocalyptic number.

It is an amenable number.

20473123061 is a deficient number, since it is larger than the sum of its proper divisors (435598411).

20473123061 is an equidigital number, since it uses as much as digits as its factorization.

20473123061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435598410.

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 20473123061 in words is "twenty billion, four hundred seventy-three million, one hundred twenty-three thousand, sixty-one".