11310311045 has 24 divisors (see below), whose sum is σ = 15282290520. Its totient is φ = 8025036800.

The previous prime is 11310311041. The next prime is 11310311053. The reversal of 11310311045 is 54011301311.

It can be written as a sum of positive squares in 4 ways, for example, as 557243236 + 10753067809 = 23606^2 + 103697^2 .

It is not a de Polignac number, because 11310311045 - 2² = 11310311041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310311041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203180 + ... + 252789.

It is an arithmetic number, because the mean of its divisors is an integer number (636762105).

Almost surely, 2^11310311045 is an apocalyptic number.

It is an amenable number.

11310311045 is a deficient number, since it is larger than the sum of its proper divisors (3971979475).

11310311045 is a wasteful number, since it uses less digits than its factorization.

11310311045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456037 (or 456026 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 11310311045 its reverse (54011301311), we get a palindrome (65321612356).

The spelling of 11310311045 in words is "eleven billion, three hundred ten million, three hundred eleven thousand, forty-five".