2100423 has 8 divisors (see below), whose sum is σ = 3016048. Its totient is φ = 1292544.

The previous prime is 2100409. The next prime is 2100451. The reversal of 2100423 is 3240012.

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

It is not a de Polignac number, because 2100423 - 2⁴ = 2100407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100399 and 2100408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100403) 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, 26890 + ... + 26967.

It is an arithmetic number, because the mean of its divisors is an integer number (377006).

2^2100423 is an apocalyptic number.

2100423 is a deficient number, since it is larger than the sum of its proper divisors (915625).

2100423 is a wasteful number, since it uses less digits than its factorization.

2100423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53873.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2100423 is about 1449.2836161359. The cubic root of 2100423 is about 128.0665140959.

Adding to 2100423 its reverse (3240012), we get a palindrome (5340435).

The spelling of 2100423 in words is "two million, one hundred thousand, four hundred twenty-three".