1130020020 has 36 divisors (see below), whose sum is σ = 3427727940. Its totient is φ = 301338624.

The previous prime is 1130020009. The next prime is 1130020037. The reversal of 1130020020 is 200200311.

It is a happy number.

1130020020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 840884004 + 289136016 = 28998^2 + 17004^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1130019984 and 1130020011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3138765 + ... + 3139124.

It is an arithmetic number, because the mean of its divisors is an integer number (95214665).

Almost surely, 2^1130020020 is an apocalyptic number.

1130020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130020020 is an abundant number, since it is smaller than the sum of its proper divisors (2297707920).

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

1130020020 is a wasteful number, since it uses less digits than its factorization.

1130020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277904 (or 6277899 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1130020020 is about 33615.7704061650. The cubic root of 1130020020 is about 1041.5865884326.

Adding to 1130020020 its reverse (200200311), we get a palindrome (1330220331).

The spelling of 1130020020 in words is "one billion, one hundred thirty million, twenty thousand, twenty".