2303121 has 4 divisors (see below), whose sum is σ = 3070832. Its totient is φ = 1535412.

The previous prime is 2303117. The next prime is 2303129. The reversal of 2303121 is 1213032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2303121 - 2² = 2303117 is a prime.

It is a D-number.

It is a Duffinian number.

2303121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2303097 and 2303106.

It is not an unprimeable number, because it can be changed into a prime (2303129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383851 + ... + 383856.

It is an arithmetic number, because the mean of its divisors is an integer number (767708).

2^2303121 is an apocalyptic number.

It is an amenable number.

2303121 is a deficient number, since it is larger than the sum of its proper divisors (767711).

2303121 is an equidigital number, since it uses as much as digits as its factorization.

2303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767710.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2303121 is about 1517.6037032111. The cubic root of 2303121 is about 132.0602915575.

Adding to 2303121 its reverse (1213032), we get a palindrome (3516153).

The spelling of 2303121 in words is "two million, three hundred three thousand, one hundred twenty-one".