20712283073 has 4 divisors (see below), whose sum is σ = 20905855920. Its totient is φ = 20518710228.

The previous prime is 20712283063. The next prime is 20712283093. The reversal of 20712283073 is 37038221702.

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 20712283073 - 2¹⁸ = 20712020929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20712283063) 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, 96786263 + ... + 96786476.

It is an arithmetic number, because the mean of its divisors is an integer number (5226463980).

Almost surely, 2^20712283073 is an apocalyptic number.

It is an amenable number.

20712283073 is a deficient number, since it is larger than the sum of its proper divisors (193572847).

20712283073 is a wasteful number, since it uses less digits than its factorization.

20712283073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193572846.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 20712283073 in words is "twenty billion, seven hundred twelve million, two hundred eighty-three thousand, seventy-three".