1134202020 has 72 divisors (see below), whose sum is σ = 3694267584. Its totient is φ = 259245504.

The previous prime is 1134202019. The next prime is 1134202049. The reversal of 1134202020 is 202024311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189952 + ... + 195831.

It is an arithmetic number, because the mean of its divisors is an integer number (51309272).

Almost surely, 2^1134202020 is an apocalyptic number.

1134202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1134202020 is an abundant number, since it is smaller than the sum of its proper divisors (2560065564).

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

1134202020 is a wasteful number, since it uses less digits than its factorization.

1134202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385809 (or 385800 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1134202020 is about 33677.9159093908. The cubic root of 1134202020 is about 1042.8699145600.

Adding to 1134202020 its reverse (202024311), we get a palindrome (1336226331).

It can be divided in two parts, 113420 and 2020, that added together give a triangular number (115440 = T₄₈₀).

The spelling of 1134202020 in words is "one billion, one hundred thirty-four million, two hundred two thousand, twenty".