1131522020112 has 160 divisors (see below), whose sum is σ = 3284612914176. Its totient is φ = 332692416000.

The previous prime is 1131522020047. The next prime is 1131522020117. The reversal of 1131522020112 is 2110202251311.

It is not an unprimeable number, because it can be changed into a prime (1131522020117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3263278 + ... + 3593330.

Almost surely, 2^{1131522020112} is an apocalyptic number.

1131522020112 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 1131522020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642306457088).

1131522020112 is an abundant number, since it is smaller than the sum of its proper divisors (2153090894064).

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

1131522020112 is a wasteful number, since it uses less digits than its factorization.

1131522020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330269 (or 330263 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 1131522020112 its reverse (2110202251311), we get a palindrome (3241724271423).

The spelling of 1131522020112 in words is "one trillion, one hundred thirty-one billion, five hundred twenty-two million, twenty thousand, one hundred twelve".