1120011001020 has 144 divisors (see below), whose sum is σ = 3625537563648. Its totient is φ = 278887311360.

The previous prime is 1120011001019. The next prime is 1120011001073. The reversal of 1120011001020 is 201001100211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1120011000993 and 1120011001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1052391 + ... + 1829630.

It is an arithmetic number, because the mean of its divisors is an integer number (25177344192).

Almost surely, 2^{1120011001020} is an apocalyptic number.

1120011001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120011001020 is an abundant number, since it is smaller than the sum of its proper divisors (2505526562628).

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

1120011001020 is a wasteful number, since it uses less digits than its factorization.

1120011001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882180 (or 2882175 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1120011001020 its reverse (201001100211), we get a palindrome (1321012101231).

The spelling of 1120011001020 in words is "one trillion, one hundred twenty billion, eleven million, one thousand, twenty".