2001232231123 has 8 divisors (see below), whose sum is σ = 2007811325520. Its totient is φ = 1994663932800.

The previous prime is 2001232231121. The next prime is 2001232231199. The reversal of 2001232231123 is 3211322321002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001232231123 - 2¹ = 2001232231121 is a prime.

It is a super-2 number, since 2×2001232231123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001232231094 and 2001232231103.

It is not an unprimeable number, because it can be changed into a prime (2001232231121) 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, 2327593 + ... + 3069226.

It is an arithmetic number, because the mean of its divisors is an integer number (250976415690).

Almost surely, 2^{2001232231123} is an apocalyptic number.

2001232231123 is a deficient number, since it is larger than the sum of its proper divisors (6579094397).

2001232231123 is an equidigital number, since it uses as much as digits as its factorization.

2001232231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398037.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2001232231123 its reverse (3211322321002), we get a palindrome (5212554552125).

The spelling of 2001232231123 in words is "two trillion, one billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred twenty-three".