5311005123 has 16 divisors (see below), whose sum is σ = 7427473920. Its totient is φ = 3371675616.

The previous prime is 5311005113. The next prime is 5311005131. The reversal of 5311005123 is 3215001135.

It is not a de Polignac number, because 5311005123 - 2⁴ = 5311005107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5311005123.

It is not an unprimeable number, because it can be changed into a prime (5311005113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503793 + ... + 514226.

It is an arithmetic number, because the mean of its divisors is an integer number (464217120).

Almost surely, 2^5311005123 is an apocalyptic number.

5311005123 is a deficient number, since it is larger than the sum of its proper divisors (2116468797).

5311005123 is a wasteful number, since it uses less digits than its factorization.

5311005123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018106.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 5311005123 is about 72876.6431924523. The cubic root of 5311005123 is about 1744.7193329710.

Adding to 5311005123 its reverse (3215001135), we get a palindrome (8526006258).

The spelling of 5311005123 in words is "five billion, three hundred eleven million, five thousand, one hundred twenty-three".