1113021131236 has 36 divisors (see below), whose sum is σ = 2266111583148. Its totient is φ = 476941989888.

The previous prime is 1113021131197. The next prime is 1113021131237. The reversal of 1113021131236 is 6321311203111.

It can be written as a sum of positive squares in 2 ways, for example, as 867804033600 + 245217097636 = 931560^2 + 495194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1113021131236.

It is not an unprimeable number, because it can be changed into a prime (1113021131237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1011076 + ... + 1802308.

Almost surely, 2^{1113021131236} is an apocalyptic number.

It is an amenable number.

1113021131236 is an abundant number, since it is smaller than the sum of its proper divisors (1153090451912).

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

1113021131236 is a wasteful number, since it uses less digits than its factorization.

1113021131236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798428 (or 798419 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 1113021131236 its reverse (6321311203111), we get a palindrome (7434332334347).

The spelling of 1113021131236 in words is "one trillion, one hundred thirteen billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-six".