1105111420 has 24 divisors (see below), whose sum is σ = 2652267744. Its totient is φ = 378895296.

The previous prime is 1105111409. The next prime is 1105111451. The reversal of 1105111420 is 241115011.

It is a super-2 number, since 2×1105111420² = 2442542501228832800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1105111394 and 1105111403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3946687 + ... + 3946966.

It is an arithmetic number, because the mean of its divisors is an integer number (110511156).

Almost surely, 2^1105111420 is an apocalyptic number.

1105111420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105111420 is an abundant number, since it is smaller than the sum of its proper divisors (1547156324).

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

1105111420 is a wasteful number, since it uses less digits than its factorization.

1105111420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893669 (or 7893667 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1105111420 is about 33243.2161500659. The cubic root of 1105111420 is about 1033.8765595588.

Adding to 1105111420 its reverse (241115011), we get a palindrome (1346226431).

The spelling of 1105111420 in words is "one billion, one hundred five million, one hundred eleven thousand, four hundred twenty".