5551304123 has 4 divisors (see below), whose sum is σ = 5555488800. Its totient is φ = 5547119448.

The previous prime is 5551304113. The next prime is 5551304131. The reversal of 5551304123 is 3214031555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5551304123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551304113) 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, 2090348 + ... + 2093001.

It is an arithmetic number, because the mean of its divisors is an integer number (1388872200).

Almost surely, 2^5551304123 is an apocalyptic number.

5551304123 is a deficient number, since it is larger than the sum of its proper divisors (4184677).

5551304123 is a wasteful number, since it uses less digits than its factorization.

5551304123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184676.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 5551304123 is about 74507.0743151280. The cubic root of 5551304123 is about 1770.6457178884.

Adding to 5551304123 its reverse (3214031555), we get a palindrome (8765335678).

The spelling of 5551304123 in words is "five billion, five hundred fifty-one million, three hundred four thousand, one hundred twenty-three".