1013303331001 has 4 divisors (see below), whose sum is σ = 1091249741092. Its totient is φ = 935356920912.

The previous prime is 1013303330983. The next prime is 1013303331043. The reversal of 1013303331001 is 1001333033101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222180249600 + 791123081401 = 471360^2 + 889451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013303331001 - 2¹⁹ = 1013302806713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013303331001.

It is not an unprimeable number, because it can be changed into a prime (1013301331001) 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, 38973205026 + ... + 38973205051.

It is an arithmetic number, because the mean of its divisors is an integer number (272812435273).

Almost surely, 2^{1013303331001} is an apocalyptic number.

It is an amenable number.

1013303331001 is a deficient number, since it is larger than the sum of its proper divisors (77946410091).

1013303331001 is an equidigital number, since it uses as much as digits as its factorization.

1013303331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77946410090.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 1013303331001 its reverse (1001333033101), we get a palindrome (2014636364102).

The spelling of 1013303331001 in words is "one trillion, thirteen billion, three hundred three million, three hundred thirty-one thousand, one".