5155234123 has 4 divisors (see below), whose sum is σ = 5551790608. Its totient is φ = 4758677640.

The previous prime is 5155234111. The next prime is 5155234127. The reversal of 5155234123 is 3214325515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3214325515 = 5 ⋅642865103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5155234123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5155234127) 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, 198278223 + ... + 198278248.

It is an arithmetic number, because the mean of its divisors is an integer number (1387947652).

Almost surely, 2^5155234123 is an apocalyptic number.

5155234123 is a deficient number, since it is larger than the sum of its proper divisors (396556485).

5155234123 is a wasteful number, since it uses less digits than its factorization.

5155234123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396556484.

The product of its digits is 18000, while the sum is 31.

The square root of 5155234123 is about 71799.9590738045. The cubic root of 5155234123 is about 1727.4923432425.

Adding to 5155234123 its reverse (3214325515), we get a palindrome (8369559638).

The spelling of 5155234123 in words is "five billion, one hundred fifty-five million, two hundred thirty-four thousand, one hundred twenty-three".