113120001 has 12 divisors (see below), whose sum is σ = 163662720. Its totient is φ = 75290040.

The previous prime is 113119987. The next prime is 113120011. The reversal of 113120001 is 100021311.

It is not a de Polignac number, because 113120001 - 2¹⁰ = 113118977 is a prime.

It is a super-2 number, since 2×113120001² = 25592269252480002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (113120011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4281 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (13638560).

Almost surely, 2^113120001 is an apocalyptic number.

It is an amenable number.

113120001 is a deficient number, since it is larger than the sum of its proper divisors (50542719).

113120001 is a wasteful number, since it uses less digits than its factorization.

113120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556 (or 20553 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 113120001 is about 10635.7886872578. The cubic root of 113120001 is about 483.6298894558.

Adding to 113120001 its reverse (100021311), we get a palindrome (213141312).

The spelling of 113120001 in words is "one hundred thirteen million, one hundred twenty thousand, one".