113406121 has 4 divisors (see below), whose sum is σ = 113677200. Its totient is φ = 113135044.

The previous prime is 113406119. The next prime is 113406131. The reversal of 113406121 is 121604311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121604311 = 37 ⋅3286603.

It is a cyclic number.

It is not a de Polignac number, because 113406121 - 2¹ = 113406119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113406101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134911 + ... + 135748.

It is an arithmetic number, because the mean of its divisors is an integer number (28419300).

Almost surely, 2^113406121 is an apocalyptic number.

It is an amenable number.

113406121 is a deficient number, since it is larger than the sum of its proper divisors (271079).

113406121 is an equidigital number, since it uses as much as digits as its factorization.

113406121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271078.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 113406121 is about 10649.2310051008. The cubic root of 113406121 is about 484.0373024661.

The spelling of 113406121 in words is "one hundred thirteen million, four hundred six thousand, one hundred twenty-one".