313323123545 has 16 divisors (see below), whose sum is σ = 378420990480. Its totient is φ = 249036662784.

The previous prime is 313323123493. The next prime is 313323123571. The reversal of 313323123545 is 545321323313.

It can be written as a sum of positive squares in 8 ways, for example, as 17007289744 + 296315833801 = 130412^2 + 544349^2 .

It is a cyclic number.

It is not a de Polignac number, because 313323123545 - 2¹² = 313323119449 is a prime.

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, 13246049 + ... + 13269681.

It is an arithmetic number, because the mean of its divisors is an integer number (23651311905).

Almost surely, 2^313323123545 is an apocalyptic number.

It is an amenable number.

313323123545 is a deficient number, since it is larger than the sum of its proper divisors (65097866935).

313323123545 is a wasteful number, since it uses less digits than its factorization.

313323123545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40684.

The product of its digits is 97200, while the sum is 35.

Adding to 313323123545 its reverse (545321323313), we get a palindrome (858644446858).

The spelling of 313323123545 in words is "three hundred thirteen billion, three hundred twenty-three million, one hundred twenty-three thousand, five hundred forty-five".