11722313052 has 72 divisors (see below), whose sum is σ = 30296727552. Its totient is φ = 3819895200.

The previous prime is 11722313047. The next prime is 11722313111. The reversal of 11722313052 is 25031322711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1673277 + ... + 1680267.

Almost surely, 2^11722313052 is an apocalyptic number.

11722313052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11722313052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15148363776).

11722313052 is an abundant number, since it is smaller than the sum of its proper divisors (18574414500).

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

11722313052 is a wasteful number, since it uses less digits than its factorization.

11722313052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039 (or 8034 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

Adding to 11722313052 its reverse (25031322711), we get a palindrome (36753635763).

The spelling of 11722313052 in words is "eleven billion, seven hundred twenty-two million, three hundred thirteen thousand, fifty-two".