20111011303130 has 128 divisors (see below), whose sum is σ = 41938656629760. Its totient is φ = 6862368522240.

The previous prime is 20111011303127. The next prime is 20111011303139. The reversal of 20111011303130 is 3130311011102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20111011303099 and 20111011303108.

It is not an unprimeable number, because it can be changed into a prime (20111011303139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1122946616 + ... + 1122964524.

It is an arithmetic number, because the mean of its divisors is an integer number (327645754920).

Almost surely, 2^{20111011303130} is an apocalyptic number.

20111011303130 is an abundant number, since it is smaller than the sum of its proper divisors (21827645326630).

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

20111011303130 is a wasteful number, since it uses less digits than its factorization.

20111011303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19704.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 20111011303130 its reverse (3130311011102), we get a palindrome (23241322314232).

The spelling of 20111011303130 in words is "twenty trillion, one hundred eleven billion, eleven million, three hundred three thousand, one hundred thirty".