20201012603 has 8 divisors (see below), whose sum is σ = 21403379088. Its totient is φ = 19000209664.

The previous prime is 20201012561. The next prime is 20201012621. The reversal of 20201012603 is 30621010202.

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

It is not a de Polignac number, because 20201012603 - 2¹⁴ = 20200996219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201512603) 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, 364226 + ... + 416007.

It is an arithmetic number, because the mean of its divisors is an integer number (2675422386).

Almost surely, 2^20201012603 is an apocalyptic number.

20201012603 is a deficient number, since it is larger than the sum of its proper divisors (1202366485).

20201012603 is a wasteful number, since it uses less digits than its factorization.

20201012603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781773.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20201012603 its reverse (30621010202), we get a palindrome (50822022805).

The spelling of 20201012603 in words is "twenty billion, two hundred one million, twelve thousand, six hundred three".