11481445790531 has 4 divisors (see below), whose sum is σ = 11483250771864. Its totient is φ = 11479640809200.

The previous prime is 11481445790527. The next prime is 11481445790569. The reversal of 11481445790531 is 13509754418411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11481445790531 - 2² = 11481445790527 is a prime.

It is a super-2 number, since 2×11481445790531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11481445190531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902481125 + ... + 902493846.

It is an arithmetic number, because the mean of its divisors is an integer number (2870812692966).

Almost surely, 2^{11481445790531} is an apocalyptic number.

11481445790531 is a deficient number, since it is larger than the sum of its proper divisors (1804981333).

11481445790531 is an equidigital number, since it uses as much as digits as its factorization.

11481445790531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804981332.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 11481445790531 in words is "eleven trillion, four hundred eighty-one billion, four hundred forty-five million, seven hundred ninety thousand, five hundred thirty-one".