20310601673 has 4 divisors (see below), whose sum is σ = 20311780368. Its totient is φ = 20309422980.

The previous prime is 20310601631. The next prime is 20310601681. The reversal of 20310601673 is 37610601302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37610601302 = 2 ⋅18805300651.

It is a cyclic number.

It is not a de Polignac number, because 20310601673 - 2¹⁶ = 20310536137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310601693) 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, 563111 + ... + 598092.

It is an arithmetic number, because the mean of its divisors is an integer number (5077945092).

Almost surely, 2^20310601673 is an apocalyptic number.

It is an amenable number.

20310601673 is a deficient number, since it is larger than the sum of its proper divisors (1178695).

20310601673 is a wasteful number, since it uses less digits than its factorization.

20310601673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178694.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 20310601673 in words is "twenty billion, three hundred ten million, six hundred one thousand, six hundred seventy-three".