11045131431525 has 18 divisors (see below), whose sum is σ = 19783057631090. Its totient is φ = 5890736763360.

The previous prime is 11045131431473. The next prime is 11045131431571. The reversal of 11045131431525 is 52513413154011.

11045131431525 is a `hidden beast` number, since 1 + 1 + 0 + 4 + 5 + 1 + 314 + 315 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 904052967489 + 10141078464036 = 950817^2 + 3184506^2 .

It is not a de Polignac number, because 11045131431525 - 2¹⁵ = 11045131398757 is a prime.

It is a super-2 number, since 2×11045131431525² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11045131431525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24544736290 + ... + 24544736739.

Almost surely, 2^{11045131431525} is an apocalyptic number.

11045131431525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11045131431525 is a deficient number, since it is larger than the sum of its proper divisors (8737926199565).

11045131431525 is a wasteful number, since it uses less digits than its factorization.

11045131431525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49089473045 (or 49089473037 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 11045131431525 its reverse (52513413154011), we get a palindrome (63558544585536).

The spelling of 11045131431525 in words is "eleven trillion, forty-five billion, one hundred thirty-one million, four hundred thirty-one thousand, five hundred twenty-five".