20923423307 has 8 divisors (see below), whose sum is σ = 21248652240. Its totient is φ = 20600509600.

The previous prime is 20923423291. The next prime is 20923423321. The reversal of 20923423307 is 70332432902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20923423307 - 2⁴ = 20923423291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20923423327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560588 + ... + 596745.

It is an arithmetic number, because the mean of its divisors is an integer number (2656081530).

Almost surely, 2^20923423307 is an apocalyptic number.

20923423307 is a deficient number, since it is larger than the sum of its proper divisors (325228933).

20923423307 is a wasteful number, since it uses less digits than its factorization.

20923423307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157613.

The product of its (nonzero) digits is 54432, while the sum is 35.

The spelling of 20923423307 in words is "twenty billion, nine hundred twenty-three million, four hundred twenty-three thousand, three hundred seven".