1133000020 has 96 divisors (see below), whose sum is σ = 2674667520. Its totient is φ = 400619520.

The previous prime is 1132999999. The next prime is 1133000021. The reversal of 1133000020 is 200003311.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1132999970 and 1133000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133000021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819730 + ... + 821110.

It is an arithmetic number, because the mean of its divisors is an integer number (27861120).

Almost surely, 2^1133000020 is an apocalyptic number.

1133000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337333760).

1133000020 is an abundant number, since it is smaller than the sum of its proper divisors (1541667500).

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

1133000020 is a wasteful number, since it uses less digits than its factorization.

1133000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1133000020 is about 33660.0656565016. The cubic root of 1133000020 is about 1042.5013815308.

Adding to 1133000020 its reverse (200003311), we get a palindrome (1333003331).

The spelling of 1133000020 in words is "one billion, one hundred thirty-three million, twenty", and thus it is an aban number.