11242155031 has 4 divisors (see below), whose sum is σ = 11313761272. Its totient is φ = 11170548792.

The previous prime is 11242155013. The next prime is 11242155091. The reversal of 11242155031 is 13055124211.

11242155031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13055124211 = 17 ⋅767948483.

It is a cyclic number.

It is not a de Polignac number, because 11242155031 - 2²¹ = 11240057879 is a prime.

It is a super-3 number, since 3×11242155031³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11242154987 and 11242155005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242155091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35802885 + ... + 35803198.

It is an arithmetic number, because the mean of its divisors is an integer number (2828440318).

Almost surely, 2^11242155031 is an apocalyptic number.

11242155031 is a deficient number, since it is larger than the sum of its proper divisors (71606241).

11242155031 is an equidigital number, since it uses as much as digits as its factorization.

11242155031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71606240.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11242155031 its reverse (13055124211), we get a palindrome (24297279242).

The spelling of 11242155031 in words is "eleven billion, two hundred forty-two million, one hundred fifty-five thousand, thirty-one".