20430715323 has 16 divisors (see below), whose sum is σ = 28190575616. Its totient is φ = 13147881120.

The previous prime is 20430715313. The next prime is 20430715343. The reversal of 20430715323 is 32351703402.

It is not a de Polignac number, because 20430715323 - 2¹⁰ = 20430714299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20430715303) 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, 239761 + ... + 313602.

It is an arithmetic number, because the mean of its divisors is an integer number (1761910976).

Almost surely, 2^20430715323 is an apocalyptic number.

20430715323 is a deficient number, since it is larger than the sum of its proper divisors (7759860293).

20430715323 is a wasteful number, since it uses less digits than its factorization.

20430715323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553794.

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 20430715323 in words is "twenty billion, four hundred thirty million, seven hundred fifteen thousand, three hundred twenty-three".