113134124021 has 4 divisors (see below), whose sum is σ = 113536736844. Its totient is φ = 112731511200.

The previous prime is 113134123969. The next prime is 113134124071. The reversal of 113134124021 is 120421431311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31937621521 + 81196502500 = 178711^2 + 284950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113134124021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113134124071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201305990 + ... + 201306551.

It is an arithmetic number, because the mean of its divisors is an integer number (28384184211).

Almost surely, 2^113134124021 is an apocalyptic number.

It is an amenable number.

113134124021 is a deficient number, since it is larger than the sum of its proper divisors (402612823).

113134124021 is an equidigital number, since it uses as much as digits as its factorization.

113134124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402612822.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 113134124021 its reverse (120421431311), we get a palindrome (233555555332).

The spelling of 113134124021 in words is "one hundred thirteen billion, one hundred thirty-four million, one hundred twenty-four thousand, twenty-one".