11285084261 has 4 divisors (see below), whose sum is σ = 12311001024. Its totient is φ = 10259167500.

The previous prime is 11285084243. The next prime is 11285084263. The reversal of 11285084261 is 16248058211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11285084261 - 2⁶ = 11285084197 is a prime.

It is a super-2 number, since 2×11285084261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285084263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512958365 + ... + 512958386.

It is an arithmetic number, because the mean of its divisors is an integer number (3077750256).

Almost surely, 2^11285084261 is an apocalyptic number.

11285084261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11285084261 is a deficient number, since it is larger than the sum of its proper divisors (1025916763).

11285084261 is a wasteful number, since it uses less digits than its factorization.

11285084261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025916762.

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 11285084261 in words is "eleven billion, two hundred eighty-five million, eighty-four thousand, two hundred sixty-one".