20113041265 has 8 divisors (see below), whose sum is σ = 25185025728. Its totient is φ = 15390848880.

The previous prime is 20113041253. The next prime is 20113041283. The reversal of 20113041265 is 56214031102.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-20113041265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87447891 + ... + 87448120.

It is an arithmetic number, because the mean of its divisors is an integer number (3148128216).

Almost surely, 2^20113041265 is an apocalyptic number.

It is an amenable number.

20113041265 is a deficient number, since it is larger than the sum of its proper divisors (5071984463).

20113041265 is a wasteful number, since it uses less digits than its factorization.

20113041265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174896039.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20113041265 its reverse (56214031102), we get a palindrome (76327072367).

The spelling of 20113041265 in words is "twenty billion, one hundred thirteen million, forty-one thousand, two hundred sixty-five".