20534535103 has 8 divisors (see below), whose sum is σ = 20921004720. Its totient is φ = 20149673280.

The previous prime is 20534535097. The next prime is 20534535137. The reversal of 20534535103 is 30153543502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20534535103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534535163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376150 + ... + 427267.

It is an arithmetic number, because the mean of its divisors is an integer number (2615125590).

Almost surely, 2^20534535103 is an apocalyptic number.

20534535103 is a deficient number, since it is larger than the sum of its proper divisors (386469617).

20534535103 is an equidigital number, since it uses as much as digits as its factorization.

20534535103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803897.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 20534535103 in words is "twenty billion, five hundred thirty-four million, five hundred thirty-five thousand, one hundred three".