5611513131 has 12 divisors (see below), whose sum is σ = 9263450352. Its totient is φ = 3206578896.

The previous prime is 5611513123. The next prime is 5611513133. The reversal of 5611513131 is 1313151165.

It is a happy number.

5611513131 is a `hidden beast` number, since 5 + 6 + 11 + 513 + 131 = 666.

It is not a de Polignac number, because 5611513131 - 2³ = 5611513123 is a prime.

It is a super-2 number, since 2×5611513131² = 62978159238770846322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5611513095 and 5611513104.

It is not an unprimeable number, because it can be changed into a prime (5611513133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44535756 + ... + 44535881.

It is an arithmetic number, because the mean of its divisors is an integer number (771954196).

Almost surely, 2^5611513131 is an apocalyptic number.

5611513131 is a deficient number, since it is larger than the sum of its proper divisors (3651937221).

5611513131 is a wasteful number, since it uses less digits than its factorization.

5611513131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89071650 (or 89071647 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 5611513131 is about 74910.0335802888. The cubic root of 5611513131 is about 1777.0241412835.

Adding to 5611513131 its reverse (1313151165), we get a palindrome (6924664296).

The spelling of 5611513131 in words is "five billion, six hundred eleven million, five hundred thirteen thousand, one hundred thirty-one".