5115531023 has 4 divisors (see below), whose sum is σ = 5138470848. Its totient is φ = 5092591200.

The previous prime is 5115530963. The next prime is 5115531049. The reversal of 5115531023 is 3201355115.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5115531023 - 2²⁰ = 5114482447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5115530983 and 5115531001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115534023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11469578 + ... + 11470023.

It is an arithmetic number, because the mean of its divisors is an integer number (1284617712).

Almost surely, 2^5115531023 is an apocalyptic number.

5115531023 is a deficient number, since it is larger than the sum of its proper divisors (22939825).

5115531023 is a wasteful number, since it uses less digits than its factorization.

5115531023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22939824.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 5115531023 is about 71522.9405365859. The cubic root of 5115531023 is about 1723.0461415188.

Adding to 5115531023 its reverse (3201355115), we get a palindrome (8316886138).

The spelling of 5115531023 in words is "five billion, one hundred fifteen million, five hundred thirty-one thousand, twenty-three".