313146521442 has 24 divisors (see below), whose sum is σ = 678762178380. Its totient is φ = 104339397120.

The previous prime is 313146521417. The next prime is 313146521459. The reversal of 313146521442 is 244125641313.

313146521442 is a `hidden beast` number, since 3 + 131 + 4 + 65 + 21 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 282416782041 + 30729739401 = 531429^2 + 175299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313146521397 and 313146521406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3519567 + ... + 3607442.

Almost surely, 2^313146521442 is an apocalyptic number.

313146521442 is an abundant number, since it is smaller than the sum of its proper divisors (365615656938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313146521442 is a wasteful number, since it uses less digits than its factorization.

313146521442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129458 (or 7129455 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 313146521442 in words is "three hundred thirteen billion, one hundred forty-six million, five hundred twenty-one thousand, four hundred forty-two".