20312444542603 has 8 divisors (see below), whose sum is σ = 20514011711760. Its totient is φ = 20110886272800.

The previous prime is 20312444542567. The next prime is 20312444542627. The reversal of 20312444542603 is 30624544421302.

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

It is a cyclic number.

It is not a de Polignac number, because 20312444542603 - 2¹³ = 20312444534411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312444542633) 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, 2410413 + ... + 6814321.

It is an arithmetic number, because the mean of its divisors is an integer number (2564251463970).

Almost surely, 2^{20312444542603} is an apocalyptic number.

20312444542603 is a deficient number, since it is larger than the sum of its proper divisors (201567169157).

20312444542603 is a wasteful number, since it uses less digits than its factorization.

20312444542603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449677.

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 20312444542603 its reverse (30624544421302), we get a palindrome (50936988963905).

The spelling of 20312444542603 in words is "twenty trillion, three hundred twelve billion, four hundred forty-four million, five hundred forty-two thousand, six hundred three".