1120002020 has 24 divisors (see below), whose sum is σ = 2454266304. Its totient is φ = 428522336.

The previous prime is 1120002001. The next prime is 1120002071. The reversal of 1120002020 is 202000211.

It is a junction number, because it is equal to n+sod(n) for n = 1120001989 and 1120002007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216934 + ... + 1217853.

It is an arithmetic number, because the mean of its divisors is an integer number (102261096).

Almost surely, 2^1120002020 is an apocalyptic number.

1120002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120002020 is an abundant number, since it is smaller than the sum of its proper divisors (1334264284).

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

1120002020 is a wasteful number, since it uses less digits than its factorization.

1120002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434819 (or 2434817 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1120002020 is about 33466.4312408718. The cubic root of 1120002020 is about 1038.4994447054.

Adding to 1120002020 its reverse (202000211), we get a palindrome (1322002231).

The spelling of 1120002020 in words is "one billion, one hundred twenty million, two thousand, twenty".