1111423401 has 12 divisors (see below), whose sum is σ = 1751334000. Its totient is φ = 673589880.

The previous prime is 1111423393. The next prime is 1111423447. The reversal of 1111423401 is 1043241111.

It is not a de Polignac number, because 1111423401 - 2³ = 1111423393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111422401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5613151 + ... + 5613348.

It is an arithmetic number, because the mean of its divisors is an integer number (145944500).

Almost surely, 2^1111423401 is an apocalyptic number.

1111423401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111423401 is a deficient number, since it is larger than the sum of its proper divisors (639910599).

1111423401 is a wasteful number, since it uses less digits than its factorization.

1111423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11226516 (or 11226513 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1111423401 is about 33338.0173525661. The cubic root of 1111423401 is about 1035.8411952911.

Adding to 1111423401 its reverse (1043241111), we get a palindrome (2154664512).

The spelling of 1111423401 in words is "one billion, one hundred eleven million, four hundred twenty-three thousand, four hundred one".