1313000400442 has 8 divisors (see below), whose sum is σ = 1969604244756. Its totient is φ = 656465652192.

The previous prime is 1313000400401. The next prime is 1313000400461. The reversal of 1313000400442 is 2440040003131.

It can be written as a sum of positive squares in 2 ways, for example, as 925134261921 + 387866138521 = 961839^2 + 622789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17226483 + ... + 17302534.

Almost surely, 2^{1313000400442} is an apocalyptic number.

1313000400442 is a deficient number, since it is larger than the sum of its proper divisors (656603844314).

1313000400442 is a wasteful number, since it uses less digits than its factorization.

1313000400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34548032.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1313000400442 its reverse (2440040003131), we get a palindrome (3753040403573).

The spelling of 1313000400442 in words is "one trillion, three hundred thirteen billion, four hundred thousand, four hundred forty-two".