2001112001231 has 8 divisors (see below), whose sum is σ = 2287579042944. Its totient is φ = 1714793434200.

The previous prime is 2001112001227. The next prime is 2001112001281. The reversal of 2001112001231 is 1321002111002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001112001231 - 2² = 2001112001227 is a prime.

It is a super-2 number, since 2×2001112001231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001112001281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37089785 + ... + 37143698.

It is an arithmetic number, because the mean of its divisors is an integer number (285947380368).

Almost surely, 2^{2001112001231} is an apocalyptic number.

2001112001231 is a deficient number, since it is larger than the sum of its proper divisors (286467041713).

2001112001231 is an equidigital number, since it uses as much as digits as its factorization.

2001112001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74237341.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2001112001231 its reverse (1321002111002), we get a palindrome (3322114112233).

The spelling of 2001112001231 in words is "two trillion, one billion, one hundred twelve million, one thousand, two hundred thirty-one".