201112001231001 has 16 divisors (see below), whose sum is σ = 307621616231424. Its totient is φ = 114484181034384.

The previous prime is 201112001230961. The next prime is 201112001231021. The reversal of 201112001231001 is 100132100211102.

It is not a de Polignac number, because 201112001231001 - 2⁷ = 201112001230873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201112001231021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18206766271 + ... + 18206777316.

It is an arithmetic number, because the mean of its divisors is an integer number (19226351014464).

Almost surely, 2^{201112001231001} is an apocalyptic number.

201112001231001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201112001231001 is a deficient number, since it is larger than the sum of its proper divisors (106509615000423).

201112001231001 is a wasteful number, since it uses less digits than its factorization.

201112001231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36413543860.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 201112001231001 its reverse (100132100211102), we get a palindrome (301244101442103).

The spelling of 201112001231001 in words is "two hundred one trillion, one hundred twelve billion, one million, two hundred thirty-one thousand, one".