20011011202140 has 96 divisors (see below), whose sum is σ = 64389021924864. Its totient is φ = 4548674983680.

The previous prime is 20011011202139. The next prime is 20011011202201. The reversal of 20011011202140 is 4120211011002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 131540734 + ... + 131692773.

It is an arithmetic number, because the mean of its divisors is an integer number (670718978384).

Almost surely, 2^{20011011202140} is an apocalyptic number.

20011011202140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011011202140 is an abundant number, since it is smaller than the sum of its proper divisors (44378010722724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011011202140 is a wasteful number, since it uses less digits than its factorization.

20011011202140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263233707 (or 263233705 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20011011202140 its reverse (4120211011002), we get a palindrome (24131222213142).

The spelling of 20011011202140 in words is "twenty trillion, eleven billion, eleven million, two hundred two thousand, one hundred forty".