11156281252 has 6 divisors (see below), whose sum is σ = 19523492198. Its totient is φ = 5578140624.

The previous prime is 11156281231. The next prime is 11156281259. The reversal of 11156281252 is 25218265111.

It can be written as a sum of positive squares in only one way, i.e., 10285205056 + 871076196 = 101416^2 + 29514^2 .

It is a super-2 number, since 2×11156281252² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11156281259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394535153 + ... + 1394535160.

Almost surely, 2^11156281252 is an apocalyptic number.

It is an amenable number.

11156281252 is a deficient number, since it is larger than the sum of its proper divisors (8367210946).

11156281252 is a wasteful number, since it uses less digits than its factorization.

11156281252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789070317 (or 2789070315 counting only the distinct ones).

The product of its digits is 9600, while the sum is 34.

The spelling of 11156281252 in words is "eleven billion, one hundred fifty-six million, two hundred eighty-one thousand, two hundred fifty-two".