1135022020 has 48 divisors (see below), whose sum is σ = 2603155968. Its totient is φ = 412271360.

The previous prime is 1135022011. The next prime is 1135022069. The reversal of 1135022020 is 202205311.

It is a junction number, because it is equal to n+sod(n) for n = 1135021985 and 1135022003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238989 + ... + 243691.

It is an arithmetic number, because the mean of its divisors is an integer number (54232416).

Almost surely, 2^1135022020 is an apocalyptic number.

1135022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135022020 is an abundant number, since it is smaller than the sum of its proper divisors (1468133948).

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

1135022020 is a wasteful number, since it uses less digits than its factorization.

1135022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820 (or 5818 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1135022020 is about 33690.0878597845. The cubic root of 1135022020 is about 1043.1211770667.

Adding to 1135022020 its reverse (202205311), we get a palindrome (1337227331).

The spelling of 1135022020 in words is "one billion, one hundred thirty-five million, twenty-two thousand, twenty".