20525113011 has 8 divisors (see below), whose sum is σ = 29471957200. Its totient is φ = 12630838752.

The previous prime is 20525112997. The next prime is 20525113079. The reversal of 20525113011 is 11031152502.

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

It is not a de Polignac number, because 20525113011 - 2⁹ = 20525112499 is a prime.

It is a super-2 number, since 2×20525113011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20525114011) by changing a digit.

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, 263142436 + ... + 263142513.

It is an arithmetic number, because the mean of its divisors is an integer number (3683994650).

Almost surely, 2^20525113011 is an apocalyptic number.

20525113011 is a deficient number, since it is larger than the sum of its proper divisors (8946844189).

20525113011 is a wasteful number, since it uses less digits than its factorization.

20525113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526284965.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 20525113011 its reverse (11031152502), we get a palindrome (31556265513).

The spelling of 20525113011 in words is "twenty billion, five hundred twenty-five million, one hundred thirteen thousand, eleven".