1113440361 has 16 divisors (see below), whose sum is σ = 1671794688. Its totient is φ = 653043600.

The previous prime is 1113440359. The next prime is 1113440417. The reversal of 1113440361 is 1630443111.

It is not a de Polignac number, because 1113440361 - 2¹ = 1113440359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113440351) 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 15 ways as a sum of consecutive naturals, for example, 543181 + ... + 545226.

It is an arithmetic number, because the mean of its divisors is an integer number (104487168).

Almost surely, 2^1113440361 is an apocalyptic number.

1113440361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1113440361 is a deficient number, since it is larger than the sum of its proper divisors (558354327).

1113440361 is a wasteful number, since it uses less digits than its factorization.

1113440361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088452.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1113440361 is about 33368.2537900922. The cubic root of 1113440361 is about 1036.4674155965.

Adding to 1113440361 its reverse (1630443111), we get a palindrome (2743883472).

The spelling of 1113440361 in words is "one billion, one hundred thirteen million, four hundred forty thousand, three hundred sixty-one".