5131123411 has 4 divisors (see below), whose sum is σ = 5170292424. Its totient is φ = 5091954400.

The previous prime is 5131123409. The next prime is 5131123427. The reversal of 5131123411 is 1143211315.

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 5131123411 - 2¹ = 5131123409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5138123411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19584310 + ... + 19584571.

It is an arithmetic number, because the mean of its divisors is an integer number (1292573106).

Almost surely, 2^5131123411 is an apocalyptic number.

5131123411 is a deficient number, since it is larger than the sum of its proper divisors (39169013).

5131123411 is a wasteful number, since it uses less digits than its factorization.

5131123411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169012.

The product of its digits is 360, while the sum is 22.

The square root of 5131123411 is about 71631.8603067099. The cubic root of 5131123411 is about 1724.7950087290.

Adding to 5131123411 its reverse (1143211315), we get a palindrome (6274334726).

The spelling of 5131123411 in words is "five billion, one hundred thirty-one million, one hundred twenty-three thousand, four hundred eleven".