1111112001020 has 24 divisors (see below), whose sum is σ = 2666668802784. Its totient is φ = 380952686016.

The previous prime is 1111112001017. The next prime is 1111112001053. The reversal of 1111112001020 is 201002111111.

It is a super-3 number, since 3×1111112001020³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111112000992 and 1111112001010.

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 7 ways as a sum of consecutive naturals, for example, 3968257007 + ... + 3968257286.

It is an arithmetic number, because the mean of its divisors is an integer number (111111200116).

Almost surely, 2^{1111112001020} is an apocalyptic number.

1111112001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111112001020 is an abundant number, since it is smaller than the sum of its proper divisors (1555556801764).

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

1111112001020 is a wasteful number, since it uses less digits than its factorization.

1111112001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936514309 (or 7936514307 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1111112001020 its reverse (201002111111), we get a palindrome (1312114112131).

The spelling of 1111112001020 in words is "one trillion, one hundred eleven billion, one hundred twelve million, one thousand, twenty".