2311544315345 has 16 divisors (see below), whose sum is σ = 2848890359568. Its totient is φ = 1799213057280.

The previous prime is 2311544315309. The next prime is 2311544315371. The reversal of 2311544315345 is 5435134451132.

It can be written as a sum of positive squares in 8 ways, for example, as 101873957329 + 2209670358016 = 319177^2 + 1486496^2 .

It is not a de Polignac number, because 2311544315345 - 2³⁶ = 2242824838609 is a prime.

It is a super-3 number, since 3×2311544315345³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9166487 + ... + 9415283.

It is an arithmetic number, because the mean of its divisors is an integer number (178055647473).

Almost surely, 2^{2311544315345} is an apocalyptic number.

It is an amenable number.

2311544315345 is a deficient number, since it is larger than the sum of its proper divisors (537346044223).

2311544315345 is a wasteful number, since it uses less digits than its factorization.

2311544315345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299060.

The product of its digits is 432000, while the sum is 41.

Adding to 2311544315345 its reverse (5435134451132), we get a palindrome (7746678766477).

The spelling of 2311544315345 in words is "two trillion, three hundred eleven billion, five hundred forty-four million, three hundred fifteen thousand, three hundred forty-five".