2102001123 has 8 divisors (see below), whose sum is σ = 2806962768. Its totient is φ = 1399186784.

The previous prime is 2102001067. The next prime is 2102001137. The reversal of 2102001123 is 3211002012.

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 2102001123 - 2⁶ = 2102001059 is a prime.

It is a super-2 number, since 2×2102001123² = 8836817442186522258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102001099 and 2102001108.

It is not an unprimeable number, because it can be changed into a prime (2102005123) 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, 534540 + ... + 538457.

It is an arithmetic number, because the mean of its divisors is an integer number (350870346).

Almost surely, 2^2102001123 is an apocalyptic number.

2102001123 is a deficient number, since it is larger than the sum of its proper divisors (704961645).

2102001123 is a wasteful number, since it uses less digits than its factorization.

2102001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073653.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2102001123 is about 45847.5857924929. The cubic root of 2102001123 is about 1280.9857971893.

Adding to 2102001123 its reverse (3211002012), we get a palindrome (5313003135).

The spelling of 2102001123 in words is "two billion, one hundred two million, one thousand, one hundred twenty-three".