1100612020 has 24 divisors (see below), whose sum is σ = 2349177768. Its totient is φ = 433027200.

The previous prime is 1100611999. The next prime is 1100612053. The reversal of 1100612020 is 202160011.

It can be written as a sum of positive squares in 4 ways, for example, as 110754576 + 989857444 = 10524^2 + 31462^2 .

It is a super-4 number, since 4×1100612020⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449851 + ... + 452290.

It is an arithmetic number, because the mean of its divisors is an integer number (97882407).

Almost surely, 2^1100612020 is an apocalyptic number.

1100612020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100612020 is an abundant number, since it is smaller than the sum of its proper divisors (1248565748).

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

1100612020 is a wasteful number, since it uses less digits than its factorization.

1100612020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902211 (or 902209 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1100612020 is about 33175.4731691953. The cubic root of 1100612020 is about 1032.4715272572.

Adding to 1100612020 its reverse (202160011), we get a palindrome (1302772031).

The spelling of 1100612020 in words is "one billion, one hundred million, six hundred twelve thousand, twenty".