11981052 has 72 divisors (see below), whose sum is σ = 31676736. Its totient is φ = 3815424.

The previous prime is 11981041. The next prime is 11981059. The reversal of 11981052 is 25018911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11981059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123468 + ... + 123564.

Almost surely, 2^11981052 is an apocalyptic number.

11981052 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 11981052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15838368).

11981052 is an abundant number, since it is smaller than the sum of its proper divisors (19695684).

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

11981052 is a wasteful number, since it uses less digits than its factorization.

11981052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 11981052 is about 3461.3656264544. The cubic root of 11981052 is about 228.8222847791.

Adding to 11981052 its reverse (25018911), we get a palindrome (36999963).

The spelling of 11981052 in words is "eleven million, nine hundred eighty-one thousand, fifty-two".