311232240045545 has 16 divisors (see below), whose sum is σ = 459666077606400. Its totient is φ = 196999747545024.

The previous prime is 311232240045469. The next prime is 311232240045547. The reversal of 311232240045545 is 545540042232113.

It is a cyclic number.

It is not a de Polignac number, because 311232240045545 - 2³⁰ = 311231166303721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311232240045547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342013450145 + ... + 342013451054.

It is an arithmetic number, because the mean of its divisors is an integer number (28729129850400).

Almost surely, 2^{311232240045545} is an apocalyptic number.

311232240045545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311232240045545 is a deficient number, since it is larger than the sum of its proper divisors (148433837560855).

311232240045545 is a wasteful number, since it uses less digits than its factorization.

311232240045545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684026901224.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 311232240045545 its reverse (545540042232113), we get a palindrome (856772282277658).

The spelling of 311232240045545 in words is "three hundred eleven trillion, two hundred thirty-two billion, two hundred forty million, forty-five thousand, five hundred forty-five".