113252121 has 8 divisors (see below), whose sum is σ = 167780960. Its totient is φ = 75501396.

The previous prime is 113252119. The next prime is 113252131. The reversal of 113252121 is 121252311.

It is not a de Polignac number, because 113252121 - 2¹ = 113252119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113252094 and 113252103.

It is not an unprimeable number, because it can be changed into a prime (113252101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097235 + ... + 2097288.

It is an arithmetic number, because the mean of its divisors is an integer number (20972620).

Almost surely, 2^113252121 is an apocalyptic number.

It is an amenable number.

113252121 is a deficient number, since it is larger than the sum of its proper divisors (54528839).

113252121 is an equidigital number, since it uses as much as digits as its factorization.

113252121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194532 (or 4194526 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 113252121 is about 10641.9979797029. The cubic root of 113252121 is about 483.8181035059.

The spelling of 113252121 in words is "one hundred thirteen million, two hundred fifty-two thousand, one hundred twenty-one".