113121340142421 has 32 divisors (see below), whose sum is σ = 169540153638912. Its totient is φ = 66567888573120.

The previous prime is 113121340142401. The next prime is 113121340142501. The reversal of 113121340142421 is 124241043121311.

It is not a de Polignac number, because 113121340142421 - 2¹¹ = 113121340140373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113121340142401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14384535 + ... + 20812436.

It is an arithmetic number, because the mean of its divisors is an integer number (5298129801216).

Almost surely, 2^{113121340142421} is an apocalyptic number.

It is an amenable number.

113121340142421 is a deficient number, since it is larger than the sum of its proper divisors (56418813496491).

113121340142421 is a wasteful number, since it uses less digits than its factorization.

113121340142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35200593.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 113121340142421 its reverse (124241043121311), we get a palindrome (237362383263732).

The spelling of 113121340142421 in words is "one hundred thirteen trillion, one hundred twenty-one billion, three hundred forty million, one hundred forty-two thousand, four hundred twenty-one".