1111000420 has 12 divisors (see below), whose sum is σ = 2333100924. Its totient is φ = 444400160.

The previous prime is 1111000409. The next prime is 1111000453. The reversal of 1111000420 is 240001111.

It can be written as a sum of positive squares in 2 ways, for example, as 540841536 + 570158884 = 23256^2 + 23878^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1111000397 and 1111000406.

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 3 ways as a sum of consecutive naturals, for example, 27774991 + ... + 27775030.

It is an arithmetic number, because the mean of its divisors is an integer number (194425077).

Almost surely, 2^1111000420 is an apocalyptic number.

1111000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111000420 is an abundant number, since it is smaller than the sum of its proper divisors (1222100504).

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

1111000420 is a wasteful number, since it uses less digits than its factorization.

1111000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550030 (or 55550028 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1111000420 is about 33331.6729253123. The cubic root of 1111000420 is about 1035.7097732072.

Adding to 1111000420 its reverse (240001111), we get a palindrome (1351001531).

The spelling of 1111000420 in words is "one billion, one hundred eleven million, four hundred twenty", and thus it is an aban number.