311232240045544 has 16 divisors (see below), whose sum is σ = 583561984940100. Its totient is φ = 155615710728192.

The previous prime is 311232240045469. The next prime is 311232240045547. The reversal of 311232240045544 is 445540042232113.

It can be written as a sum of positive squares in 2 ways, for example, as 310375249200900 + 856990844644 = 17617470^2 + 925738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311232240045497 and 311232240045506.

It is not an unprimeable number, because it can be changed into a prime (311232240045547) 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, 47917977 + ... + 54024040.

Almost surely, 2^{311232240045544} is an apocalyptic number.

It is an amenable number.

311232240045544 is a deficient number, since it is larger than the sum of its proper divisors (272329744894556).

311232240045544 is a wasteful number, since it uses less digits than its factorization.

311232240045544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102323652 (or 102323648 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 311232240045544 its reverse (445540042232113), we get a palindrome (756772282277657).

The spelling of 311232240045544 in words is "three hundred eleven trillion, two hundred thirty-two billion, two hundred forty million, forty-five thousand, five hundred forty-four".