101112001 has 4 divisors (see below), whose sum is σ = 101133252. Its totient is φ = 101090752.

The previous prime is 101111917. The next prime is 101112013. The reversal of 101112001 is 100211101.

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 4601025 + 96510976 = 2145^2 + 9824^2 .

It is a cyclic number.

It is not a de Polignac number, because 101112001 - 2¹³ = 101103809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101112901) 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 3 ways as a sum of consecutive naturals, for example, 165 + ... + 14221.

It is an arithmetic number, because the mean of its divisors is an integer number (25283313).

Almost surely, 2^101112001 is an apocalyptic number.

It is an amenable number.

101112001 is a deficient number, since it is larger than the sum of its proper divisors (21251).

101112001 is an equidigital number, since it uses as much as digits as its factorization.

101112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21250.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 101112001 is about 10055.4463351957. The cubic root of 101112001 is about 465.8730290114.

Adding to 101112001 its reverse (100211101), we get a palindrome (201323102).

The spelling of 101112001 in words is "one hundred one million, one hundred twelve thousand, one".