1111266420 has 72 divisors (see below), whose sum is σ = 3420151392. Its totient is φ = 269396160.

The previous prime is 1111266397. The next prime is 1111266427. The reversal of 1111266420 is 246621111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111266427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69274 + ... + 83793.

Almost surely, 2^1111266420 is an apocalyptic number.

1111266420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111266420 is an abundant number, since it is smaller than the sum of its proper divisors (2308884972).

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

1111266420 is a wasteful number, since it uses less digits than its factorization.

1111266420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153101 (or 153088 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1111266420 is about 33335.6628852645. The cubic root of 1111266420 is about 1035.7924244858.

Adding to 1111266420 its reverse (246621111), we get a palindrome (1357887531).

The spelling of 1111266420 in words is "one billion, one hundred eleven million, two hundred sixty-six thousand, four hundred twenty".