2123450503 has 8 divisors (see below), whose sum is σ = 2151531648. Its totient is φ = 2095428984.

The previous prime is 2123450491. The next prime is 2123450509. The reversal of 2123450503 is 3050543212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123450503 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123450509) 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, 59200 + ... + 88042.

It is an arithmetic number, because the mean of its divisors is an integer number (268941456).

Almost surely, 2^2123450503 is an apocalyptic number.

2123450503 is a deficient number, since it is larger than the sum of its proper divisors (28081145).

2123450503 is an equidigital number, since it uses as much as digits as its factorization.

2123450503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29813.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2123450503 is about 46080.9125669186. The cubic root of 2123450503 is about 1285.3282336119.

Adding to 2123450503 its reverse (3050543212), we get a palindrome (5173993715).

The spelling of 2123450503 in words is "two billion, one hundred twenty-three million, four hundred fifty thousand, five hundred three".