5131123611 has 8 divisors (see below), whose sum is σ = 6843642960. Its totient is φ = 3419676672.

The previous prime is 5131123607. The next prime is 5131123639. The reversal of 5131123611 is 1163211315.

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

It is not a de Polignac number, because 5131123611 - 2² = 5131123607 is a prime.

It is a super-2 number, since 2×5131123611² = 52656859022723358642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5131123691) 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, 256870 + ... + 276123.

It is an arithmetic number, because the mean of its divisors is an integer number (855455370).

Almost surely, 2^5131123611 is an apocalyptic number.

5131123611 is a deficient number, since it is larger than the sum of its proper divisors (1712519349).

5131123611 is a wasteful number, since it uses less digits than its factorization.

5131123611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536205.

The product of its digits is 540, while the sum is 24.

The square root of 5131123611 is about 71631.8617027367. The cubic root of 5131123611 is about 1724.7950311386.

Adding to 5131123611 its reverse (1163211315), we get a palindrome (6294334926).

The spelling of 5131123611 in words is "five billion, one hundred thirty-one million, one hundred twenty-three thousand, six hundred eleven".