20112544135 has 8 divisors (see below), whose sum is σ = 24153784560. Its totient is φ = 16077547584.

The previous prime is 20112544121. The next prime is 20112544141. The reversal of 20112544135 is 53144521102.

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-20112544135 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 7 ways as a sum of consecutive naturals, for example, 1553877 + ... + 1566766.

It is an arithmetic number, because the mean of its divisors is an integer number (3019223070).

Almost surely, 2^20112544135 is an apocalyptic number.

20112544135 is a deficient number, since it is larger than the sum of its proper divisors (4041240425).

20112544135 is a wasteful number, since it uses less digits than its factorization.

20112544135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121937.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 20112544135 in words is "twenty billion, one hundred twelve million, five hundred forty-four thousand, one hundred thirty-five".