1340001003 has 16 divisors (see below), whose sum is σ = 1964445696. Its totient is φ = 805724640.

The previous prime is 1340001001. The next prime is 1340001017. The reversal of 1340001003 is 3001000431.

It is not a de Polignac number, because 1340001003 - 2¹ = 1340001001 is a prime.

It is a super-3 number, since 3×1340001003³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340001003.

It is not an unprimeable number, because it can be changed into a prime (1340001001) 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, 155676 + ... + 164057.

It is an arithmetic number, because the mean of its divisors is an integer number (122777856).

Almost surely, 2^1340001003 is an apocalyptic number.

1340001003 is a deficient number, since it is larger than the sum of its proper divisors (624444693).

1340001003 is a wasteful number, since it uses less digits than its factorization.

1340001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319874.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1340001003 is about 36606.0241353797. The cubic root of 1340001003 is about 1102.4740465196.

Adding to 1340001003 its reverse (3001000431), we get a palindrome (4341001434).

The spelling of 1340001003 in words is "one billion, three hundred forty million, one thousand, three".