5145313123 has 8 divisors (see below), whose sum is σ = 5291319600. Its totient is φ = 5001266688.

The previous prime is 5145313079. The next prime is 5145313153. The reversal of 5145313123 is 3213135415.

It is a happy number.

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

It is not a de Polignac number, because 5145313123 - 2²¹ = 5143215971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5145313091 and 5145313100.

It is not an unprimeable number, because it can be changed into a prime (5145313153) 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, 484686 + ... + 495187.

It is an arithmetic number, because the mean of its divisors is an integer number (661414950).

Almost surely, 2^5145313123 is an apocalyptic number.

5145313123 is a deficient number, since it is larger than the sum of its proper divisors (146006477).

5145313123 is an equidigital number, since it uses as much as digits as its factorization.

5145313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980021.

The product of its digits is 5400, while the sum is 28.

The square root of 5145313123 is about 71730.8380196412. The cubic root of 5145313123 is about 1726.3834729863.

Adding to 5145313123 its reverse (3213135415), we get a palindrome (8358448538).

The spelling of 5145313123 in words is "five billion, one hundred forty-five million, three hundred thirteen thousand, one hundred twenty-three".