2303133121 has 4 divisors (see below), whose sum is σ = 2307554244. Its totient is φ = 2298712000.

The previous prime is 2303133103. The next prime is 2303133149. The reversal of 2303133121 is 1213313032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1692499600 + 610633521 = 41140^2 + 24711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303133121 - 2⁹ = 2303132609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2303133101) 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, 2209780 + ... + 2210821.

It is an arithmetic number, because the mean of its divisors is an integer number (576888561).

Almost surely, 2^2303133121 is an apocalyptic number.

It is an amenable number.

2303133121 is a deficient number, since it is larger than the sum of its proper divisors (4421123).

2303133121 is an equidigital number, since it uses as much as digits as its factorization.

2303133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421122.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2303133121 is about 47990.9691608744. The cubic root of 2303133121 is about 1320.6052322861.

Adding to 2303133121 its reverse (1213313032), we get a palindrome (3516446153).

It can be divided in two parts, 2303 and 133121, that added together give a square (135424 = 368²).

The spelling of 2303133121 in words is "two billion, three hundred three million, one hundred thirty-three thousand, one hundred twenty-one".