11131442551436 has 12 divisors (see below), whose sum is σ = 20505288910680. Its totient is φ = 5272788576960.

The previous prime is 11131442551421. The next prime is 11131442551441. The reversal of 11131442551436 is 63415524413111.

It is a junction number, because it is equal to n+sod(n) for n = 11131442551393 and 11131442551402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73233174605 + ... + 73233174756.

It is an arithmetic number, because the mean of its divisors is an integer number (1708774075890).

Almost surely, 2^{11131442551436} is an apocalyptic number.

It is an amenable number.

11131442551436 is a deficient number, since it is larger than the sum of its proper divisors (9373846359244).

11131442551436 is a wasteful number, since it uses less digits than its factorization.

11131442551436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146466349384 (or 146466349382 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

Adding to 11131442551436 its reverse (63415524413111), we get a palindrome (74546966964547).

The spelling of 11131442551436 in words is "eleven trillion, one hundred thirty-one billion, four hundred forty-two million, five hundred fifty-one thousand, four hundred thirty-six".