20530432102 has 8 divisors (see below), whose sum is σ = 32416471800. Its totient is φ = 9724941504.

The previous prime is 20530432067. The next prime is 20530432103. The reversal of 20530432102 is 20123403502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530432103) 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 3 ways as a sum of consecutive naturals, for example, 270137227 + ... + 270137302.

It is an arithmetic number, because the mean of its divisors is an integer number (4052058975).

Almost surely, 2^20530432102 is an apocalyptic number.

20530432102 is a deficient number, since it is larger than the sum of its proper divisors (11886039698).

20530432102 is a wasteful number, since it uses less digits than its factorization.

20530432102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540274550.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20530432102 its reverse (20123403502), we get a palindrome (40653835604).

The spelling of 20530432102 in words is "twenty billion, five hundred thirty million, four hundred thirty-two thousand, one hundred two".