312045043145355 has 48 divisors (see below), whose sum is σ = 582485932357056. Its totient is φ = 153621686695680.

The previous prime is 312045043145279. The next prime is 312045043145357. The reversal of 312045043145355 is 553541340540213.

312045043145355 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 450 + 4 + 3 + 145 + 3 + 55 = 666.

It is not a de Polignac number, because 312045043145355 - 2³⁰ = 312043969403531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 312045043145355.

It is not an unprimeable number, because it can be changed into a prime (312045043145357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243406890 + ... + 244685520.

It is an arithmetic number, because the mean of its divisors is an integer number (12135123590772).

Almost surely, 2^{312045043145355} is an apocalyptic number.

312045043145355 is a deficient number, since it is larger than the sum of its proper divisors (270440889211701).

312045043145355 is a wasteful number, since it uses less digits than its factorization.

312045043145355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695828 (or 1695825 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

Adding to 312045043145355 its reverse (553541340540213), we get a palindrome (865586383685568).

The spelling of 312045043145355 in words is "three hundred twelve trillion, forty-five billion, forty-three million, one hundred forty-five thousand, three hundred fifty-five".