11103052131 has 16 divisors (see below), whose sum is σ = 17164139520. Its totient is φ = 7080206760.

The previous prime is 11103052127. The next prime is 11103052141. The reversal of 11103052131 is 13125030111.

11103052131 is a `hidden beast` number, since 1 + 110 + 3 + 0 + 521 + 31 = 666.

It is not a de Polignac number, because 11103052131 - 2² = 11103052127 is a prime.

It is a super-2 number, since 2×11103052131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11103052141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939035 + ... + 8940276.

It is an arithmetic number, because the mean of its divisors is an integer number (1072758720).

Almost surely, 2^11103052131 is an apocalyptic number.

11103052131 is a deficient number, since it is larger than the sum of its proper divisors (6061087389).

11103052131 is a wasteful number, since it uses less digits than its factorization.

11103052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17879343 (or 17879337 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 11103052131 its reverse (13125030111), we get a palindrome (24228082242).

The spelling of 11103052131 in words is "eleven billion, one hundred three million, fifty-two thousand, one hundred thirty-one".