11481235581237 has 8 divisors (see below), whose sum is σ = 15308376972480. Its totient is φ = 7654125622080.

The previous prime is 11481235581203. The next prime is 11481235581241. The reversal of 11481235581237 is 73218553218411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11481235581237 - 2²⁷ = 11481101363509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11481235581237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481235581287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6992089 + ... + 8476542.

It is an arithmetic number, because the mean of its divisors is an integer number (1913547121560).

Almost surely, 2^{11481235581237} is an apocalyptic number.

It is an amenable number.

11481235581237 is a deficient number, since it is larger than the sum of its proper divisors (3827141391243).

11481235581237 is a wasteful number, since it uses less digits than its factorization.

11481235581237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15716043.

The product of its digits is 1612800, while the sum is 51.

Adding to 11481235581237 its reverse (73218553218411), we get a palindrome (84699788799648).

The spelling of 11481235581237 in words is "eleven trillion, four hundred eighty-one billion, two hundred thirty-five million, five hundred eighty-one thousand, two hundred thirty-seven".