20012054511 has 16 divisors (see below), whose sum is σ = 26760222720. Its totient is φ = 13302665760.

The previous prime is 20012054479. The next prime is 20012054539. The reversal of 20012054511 is 11545021002.

It is not a de Polignac number, because 20012054511 - 2⁵ = 20012054479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012054561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2982186 + ... + 2988888.

It is an arithmetic number, because the mean of its divisors is an integer number (1672513920).

Almost surely, 2^20012054511 is an apocalyptic number.

20012054511 is a deficient number, since it is larger than the sum of its proper divisors (6748168209).

20012054511 is a wasteful number, since it uses less digits than its factorization.

20012054511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9446.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 20012054511 its reverse (11545021002), we get a palindrome (31557075513).

The spelling of 20012054511 in words is "twenty billion, twelve million, fifty-four thousand, five hundred eleven".