1285013782003 has 16 divisors (see below), whose sum is σ = 1476144552960. Its totient is φ = 1095773134176.

The previous prime is 1285013781991. The next prime is 1285013782027. The reversal of 1285013782003 is 3002873105821.

It is a happy number.

It is not a de Polignac number, because 1285013782003 - 2⁵ = 1285013781971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285013782043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29708250 + ... + 29751472.

It is an arithmetic number, because the mean of its divisors is an integer number (92259034560).

Almost surely, 2^{1285013782003} is an apocalyptic number.

1285013782003 is a deficient number, since it is larger than the sum of its proper divisors (191130770957).

1285013782003 is a wasteful number, since it uses less digits than its factorization.

1285013782003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64986.

The product of its (nonzero) digits is 80640, while the sum is 40.

Adding to 1285013782003 its reverse (3002873105821), we get a palindrome (4287886887824).

The spelling of 1285013782003 in words is "one trillion, two hundred eighty-five billion, thirteen million, seven hundred eighty-two thousand, three".