11110111021020 has 48 divisors (see below), whose sum is σ = 33936339120768. Its totient is φ = 2693360247360.

The previous prime is 11110111021013. The next prime is 11110111021033. The reversal of 11110111021020 is 2012011101111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11110111020987 and 11110111021005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8416750114 + ... + 8416751433.

It is an arithmetic number, because the mean of its divisors is an integer number (707007065016).

Almost surely, 2^{11110111021020} is an apocalyptic number.

11110111021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11110111021020 is an abundant number, since it is smaller than the sum of its proper divisors (22826228099748).

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

11110111021020 is a wasteful number, since it uses less digits than its factorization.

11110111021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16833501570 (or 16833501568 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11110111021020 its reverse (2012011101111), we get a palindrome (13122122122131).

It can be divided in two parts, 111101 and 11021020, that added together give a triangular number (11132121 = T₄₇₁₈).

The spelling of 11110111021020 in words is "eleven trillion, one hundred ten billion, one hundred eleven million, twenty-one thousand, twenty".