113440343421 has 16 divisors (see below), whose sum is σ = 153748159488. Its totient is φ = 74379950400.

The previous prime is 113440343413. The next prime is 113440343431. The reversal of 113440343421 is 124343044311.

It is not a de Polignac number, because 113440343421 - 2³ = 113440343413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113440343431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428516 + ... + 2474786.

It is an arithmetic number, because the mean of its divisors is an integer number (9609259968).

Almost surely, 2^113440343421 is an apocalyptic number.

It is an amenable number.

113440343421 is a deficient number, since it is larger than the sum of its proper divisors (40307816067).

113440343421 is a wasteful number, since it uses less digits than its factorization.

113440343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59732.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 113440343421 its reverse (124343044311), we get a palindrome (237783387732).

The spelling of 113440343421 in words is "one hundred thirteen billion, four hundred forty million, three hundred forty-three thousand, four hundred twenty-one".