11134155231 has 6 divisors (see below), whose sum is σ = 16082668680. Its totient is φ = 7422770148.

The previous prime is 11134155229. The next prime is 11134155247. The reversal of 11134155231 is 13255143111.

11134155231 is a `hidden beast` number, since 1 + 1 + 13 + 415 + 5 + 231 = 666.

It is not a de Polignac number, because 11134155231 - 2¹ = 11134155229 is a prime.

It is a super-2 number, since 2×11134155231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11134155195 and 11134155204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11134155251) 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, 618564171 + ... + 618564188.

It is an arithmetic number, because the mean of its divisors is an integer number (2680444780).

Almost surely, 2^11134155231 is an apocalyptic number.

11134155231 is a deficient number, since it is larger than the sum of its proper divisors (4948513449).

11134155231 is a wasteful number, since it uses less digits than its factorization.

11134155231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237128365 (or 1237128362 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

Adding to 11134155231 its reverse (13255143111), we get a palindrome (24389298342).

The spelling of 11134155231 in words is "eleven billion, one hundred thirty-four million, one hundred fifty-five thousand, two hundred thirty-one".