11431124545 has 32 divisors (see below), whose sum is σ = 14407165440. Its totient is φ = 8690457600.

The previous prime is 11431124539. The next prime is 11431124557. The reversal of 11431124545 is 54542113411.

It is not a de Polignac number, because 11431124545 - 2⁷ = 11431124417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22457751 + ... + 22458259.

It is an arithmetic number, because the mean of its divisors is an integer number (450223920).

Almost surely, 2^11431124545 is an apocalyptic number.

It is an amenable number.

11431124545 is a deficient number, since it is larger than the sum of its proper divisors (2976040895).

11431124545 is a wasteful number, since it uses less digits than its factorization.

11431124545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425.

The product of its digits is 9600, while the sum is 31.

Adding to 11431124545 its reverse (54542113411), we get a palindrome (65973237956).

The spelling of 11431124545 in words is "eleven billion, four hundred thirty-one million, one hundred twenty-four thousand, five hundred forty-five".