11445321137 has 16 divisors (see below), whose sum is σ = 12590223360. Its totient is φ = 10365404112.

The previous prime is 11445321113. The next prime is 11445321143. The reversal of 11445321137 is 73112354411.

It is a cyclic number.

It is not a de Polignac number, because 11445321137 - 2¹⁰ = 11445320113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11445321187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110633 + ... + 187430.

It is an arithmetic number, because the mean of its divisors is an integer number (786888960).

Almost surely, 2^11445321137 is an apocalyptic number.

It is an amenable number.

11445321137 is a deficient number, since it is larger than the sum of its proper divisors (1144902223).

11445321137 is a wasteful number, since it uses less digits than its factorization.

11445321137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298172.

The product of its digits is 10080, while the sum is 32.

Adding to 11445321137 its reverse (73112354411), we get a palindrome (84557675548).

The spelling of 11445321137 in words is "eleven billion, four hundred forty-five million, three hundred twenty-one thousand, one hundred thirty-seven".