20124312735 has 16 divisors (see below), whose sum is σ = 32209067520. Its totient is φ = 10729577760.

The previous prime is 20124312709. The next prime is 20124312743. The reversal of 20124312735 is 53721342102.

It is not a de Polignac number, because 20124312735 - 2²¹ = 20122215583 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 162355 + ... + 258084.

It is an arithmetic number, because the mean of its divisors is an integer number (2013066720).

Almost surely, 2^20124312735 is an apocalyptic number.

20124312735 is a deficient number, since it is larger than the sum of its proper divisors (12084754785).

20124312735 is a wasteful number, since it uses less digits than its factorization.

20124312735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423638.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 20124312735 its reverse (53721342102), we get a palindrome (73845654837).

The spelling of 20124312735 in words is "twenty billion, one hundred twenty-four million, three hundred twelve thousand, seven hundred thirty-five".