20530230399 has 48 divisors (see below), whose sum is σ = 35384573952. Its totient is φ = 11215188864.

The previous prime is 20530230377. The next prime is 20530230401. The reversal of 20530230399 is 99303203502.

20530230399 is a `hidden beast` number, since 2 + 0 + 5 + 30 + 230 + 399 = 666.

It is not a de Polignac number, because 20530230399 - 2¹² = 20530226303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530230499) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3890827 + ... + 3896099.

It is an arithmetic number, because the mean of its divisors is an integer number (737178624).

Almost surely, 2^20530230399 is an apocalyptic number.

20530230399 is a deficient number, since it is larger than the sum of its proper divisors (14854343553).

20530230399 is a wasteful number, since it uses less digits than its factorization.

20530230399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996 (or 7993 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The spelling of 20530230399 in words is "twenty billion, five hundred thirty million, two hundred thirty thousand, three hundred ninety-nine".