2123400303 has 12 divisors (see below), whose sum is σ = 3067557480. Its totient is φ = 1415404656.

The previous prime is 2123400287. The next prime is 2123400313. The reversal of 2123400303 is 3030043212.

2123400303 is a `hidden beast` number, since 21 + 2 + 340 + 0 + 303 = 666.

2123400303 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2123400303 - 2⁴ = 2123400287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123400313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86808 + ... + 108546.

It is an arithmetic number, because the mean of its divisors is an integer number (255629790).

Almost surely, 2^2123400303 is an apocalyptic number.

2123400303 is a deficient number, since it is larger than the sum of its proper divisors (944157177).

2123400303 is a wasteful number, since it uses less digits than its factorization.

2123400303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32598 (or 32595 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2123400303 is about 46080.3678696253. The cubic root of 2123400303 is about 1285.3181048167.

Adding to 2123400303 its reverse (3030043212), we get a palindrome (5153443515).

The spelling of 2123400303 in words is "two billion, one hundred twenty-three million, four hundred thousand, three hundred three".