1105020120 has 64 divisors (see below), whose sum is σ = 3349271520. Its totient is φ = 291631104.

The previous prime is 1105020113. The next prime is 1105020121. The reversal of 1105020120 is 210205011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1105020096 and 1105020105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105020121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35827 + ... + 59106.

Almost surely, 2^1105020120 is an apocalyptic number.

1105020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105020120 is an abundant number, since it is smaller than the sum of its proper divisors (2244251400).

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

1105020120 is a wasteful number, since it uses less digits than its factorization.

1105020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95044 (or 95040 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1105020120 is about 33241.8429092010. The cubic root of 1105020120 is about 1033.8480871569.

Adding to 1105020120 its reverse (210205011), we get a palindrome (1315225131).

The spelling of 1105020120 in words is "one billion, one hundred five million, twenty thousand, one hundred twenty".