20001131110 has 16 divisors (see below), whose sum is σ = 36004722336. Its totient is φ = 7999855488.

The previous prime is 20001131053. The next prime is 20001131173. The reversal of 20001131110 is 1113110002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81694 + ... + 216046.

It is an arithmetic number, because the mean of its divisors is an integer number (2250295146).

Almost surely, 2^20001131110 is an apocalyptic number.

20001131110 is a deficient number, since it is larger than the sum of its proper divisors (16003591226).

20001131110 is a wasteful number, since it uses less digits than its factorization.

20001131110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149247.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 20001131110 its reverse (1113110002), we get a palindrome (21114241112).

The spelling of 20001131110 in words is "twenty billion, one million, one hundred thirty-one thousand, one hundred ten".