2002012123 has 8 divisors (see below), whose sum is σ = 2120722992. Its totient is φ = 1883406336.

The previous prime is 2002012093. The next prime is 2002012151. The reversal of 2002012123 is 3212102002.

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

It is not a de Polignac number, because 2002012123 - 2¹⁷ = 2001881051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002012153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14811 + ... + 64987.

It is an arithmetic number, because the mean of its divisors is an integer number (265090374).

Almost surely, 2^2002012123 is an apocalyptic number.

2002012123 is a deficient number, since it is larger than the sum of its proper divisors (118710869).

2002012123 is a wasteful number, since it uses less digits than its factorization.

2002012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52541.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2002012123 is about 44743.8501137307. The cubic root of 2002012123 is about 1260.3434276343.

Adding to 2002012123 its reverse (3212102002), we get a palindrome (5214114125).

The spelling of 2002012123 in words is "two billion, two million, twelve thousand, one hundred twenty-three".