20524312403 has 8 divisors (see below), whose sum is σ = 23579166720. Its totient is φ = 17500160520.

The previous prime is 20524312399. The next prime is 20524312409. The reversal of 20524312403 is 30421342502.

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 20524312403 - 2² = 20524312399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20524312409) 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 7 ways as a sum of consecutive naturals, for example, 7674173 + ... + 7676846.

It is an arithmetic number, because the mean of its divisors is an integer number (2947395840).

Almost surely, 2^20524312403 is an apocalyptic number.

20524312403 is a deficient number, since it is larger than the sum of its proper divisors (3054854317).

20524312403 is a wasteful number, since it uses less digits than its factorization.

20524312403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15351217.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20524312403 its reverse (30421342502), we get a palindrome (50945654905).

The spelling of 20524312403 in words is "twenty billion, five hundred twenty-four million, three hundred twelve thousand, four hundred three".