113444310421 has 24 divisors (see below), whose sum is σ = 124866580320. Its totient is φ = 102996818496.

The previous prime is 113444310403. The next prime is 113444310431. The reversal of 113444310421 is 124013444311.

It is not a de Polignac number, because 113444310421 - 2¹³ = 113444302229 is a prime.

It is a super-2 number, since 2×113444310421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113444310421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113444310431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7726275 + ... + 7740943.

It is an arithmetic number, because the mean of its divisors is an integer number (5202774180).

Almost surely, 2^113444310421 is an apocalyptic number.

It is an amenable number.

113444310421 is a deficient number, since it is larger than the sum of its proper divisors (11422269899).

113444310421 is a wasteful number, since it uses less digits than its factorization.

113444310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15445 (or 15432 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 113444310421 its reverse (124013444311), we get a palindrome (237457754732).

The spelling of 113444310421 in words is "one hundred thirteen billion, four hundred forty-four million, three hundred ten thousand, four hundred twenty-one".