2123401 has 8 divisors (see below), whose sum is σ = 2442944. Its totient is φ = 1807920.

The previous prime is 2123377. The next prime is 2123411. The reversal of 2123401 is 1043212.

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 2123401 - 2⁵ = 2123369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123411) 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, 211 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (305368).

2^2123401 is an apocalyptic number.

It is an amenable number.

2123401 is a deficient number, since it is larger than the sum of its proper divisors (319543).

2123401 is a wasteful number, since it uses less digits than its factorization.

2123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031.

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

The square root of 2123401 is about 1457.1894180236. The cubic root of 2123401 is about 128.5318245451.

Adding to 2123401 its reverse (1043212), we get a palindrome (3166613).

The spelling of 2123401 in words is "two million, one hundred twenty-three thousand, four hundred one".