11103075531 has 6 divisors (see below), whose sum is σ = 16037775780. Its totient is φ = 7402050348.

The previous prime is 11103075509. The next prime is 11103075563. The reversal of 11103075531 is 13557030111.

11103075531 is a `hidden beast` number, since 1 + 1 + 103 + 0 + 7 + 553 + 1 = 666.

It is not a de Polignac number, because 11103075531 - 2⁹ = 11103075019 is a prime.

It is a super-2 number, since 2×11103075531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11103075495 and 11103075504.

It is not an unprimeable number, because it can be changed into a prime (11103005531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616837521 + ... + 616837538.

It is an arithmetic number, because the mean of its divisors is an integer number (2672962630).

Almost surely, 2^11103075531 is an apocalyptic number.

11103075531 is a deficient number, since it is larger than the sum of its proper divisors (4934700249).

11103075531 is a wasteful number, since it uses less digits than its factorization.

11103075531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233675065 (or 1233675062 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The spelling of 11103075531 in words is "eleven billion, one hundred three million, seventy-five thousand, five hundred thirty-one".