11005234452 has 60 divisors (see below), whose sum is σ = 28785515220. Its totient is φ = 3666415104.

The previous prime is 11005234451. The next prime is 11005234463. The reversal of 11005234452 is 25443250011.

It can be written as a sum of positive squares in 2 ways, for example, as 2220671376 + 8784563076 = 47124^2 + 93726^2 .

It is a super-2 number, since 2×11005234452² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005234451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 662148 + ... + 678564.

It is an arithmetic number, because the mean of its divisors is an integer number (479758587).

Almost surely, 2^11005234452 is an apocalyptic number.

11005234452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11005234452 is an abundant number, since it is smaller than the sum of its proper divisors (17780280768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11005234452 is a wasteful number, since it uses less digits than its factorization.

11005234452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18502 (or 18491 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 11005234452 its reverse (25443250011), we get a palindrome (36448484463).

The spelling of 11005234452 in words is "eleven billion, five million, two hundred thirty-four thousand, four hundred fifty-two".