2001034123 has 8 divisors (see below), whose sum is σ = 2183798016. Its totient is φ = 1818412200.

The previous prime is 2001034121. The next prime is 2001034157. The reversal of 2001034123 is 3214301002.

It is a happy number.

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

It is not a de Polignac number, because 2001034123 - 2¹ = 2001034121 is a prime.

It is a super-2 number, since 2×2001034123² = 8008275122820758258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001034097 and 2001034106.

It is not an unprimeable number, because it can be changed into a prime (2001034121) 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, 4863 + ... + 63448.

It is an arithmetic number, because the mean of its divisors is an integer number (272974752).

Almost surely, 2^2001034123 is an apocalyptic number.

2001034123 is a deficient number, since it is larger than the sum of its proper divisors (182763893).

2001034123 is a wasteful number, since it uses less digits than its factorization.

2001034123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70985.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2001034123 is about 44732.9199024611. The cubic root of 2001034123 is about 1260.1381647012.

Adding to 2001034123 its reverse (3214301002), we get a palindrome (5215335125).

The spelling of 2001034123 in words is "two billion, one million, thirty-four thousand, one hundred twenty-three".