118801001 has 4 divisors (see below), whose sum is σ = 129601104. Its totient is φ = 108000900.

The previous prime is 118800991. The next prime is 118801013. The reversal of 118801001 is 100108811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118801001 - 2²² = 114606697 is a prime.

It is a super-2 number, since 2×118801001² = 28227355677204002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118801201) 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, 5400035 + ... + 5400056.

It is an arithmetic number, because the mean of its divisors is an integer number (32400276).

Almost surely, 2^118801001 is an apocalyptic number.

118801001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118801001 is a deficient number, since it is larger than the sum of its proper divisors (10800103).

118801001 is a wasteful number, since it uses less digits than its factorization.

118801001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10800102.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 118801001 is about 10899.5871940179. The cubic root of 118801001 is about 491.5941430646.

Adding to 118801001 its reverse (100108811), we get a palindrome (218909812).

The spelling of 118801001 in words is "one hundred eighteen million, eight hundred one thousand, one".