11501124431 has 2 divisors, whose sum is σ = 11501124432. Its totient is φ = 11501124430.

The previous prime is 11501124373. The next prime is 11501124451. The reversal of 11501124431 is 13442110511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11501124431 is a prime.

It is a super-2 number, since 2×11501124431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11501124397 and 11501124406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11501124451) 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 as a sum of consecutive naturals, namely, 5750562215 + 5750562216.

It is an arithmetic number, because the mean of its divisors is an integer number (5750562216).

Almost surely, 2^11501124431 is an apocalyptic number.

11501124431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11501124431 is an equidigital number, since it uses as much as digits as its factorization.

11501124431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 11501124431 its reverse (13442110511), we get a palindrome (24943234942).

The spelling of 11501124431 in words is "eleven billion, five hundred one million, one hundred twenty-four thousand, four hundred thirty-one".