1313420003 has 4 divisors (see below), whose sum is σ = 1501051440. Its totient is φ = 1125788568.

The previous prime is 1313419963. The next prime is 1313420021. The reversal of 1313420003 is 3000243131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000243131 = 1109 ⋅2705359.

It is a cyclic number.

It is not a de Polignac number, because 1313420003 - 2²⁸ = 1044984547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313420033) 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, 93815708 + ... + 93815721.

It is an arithmetic number, because the mean of its divisors is an integer number (375262860).

Almost surely, 2^1313420003 is an apocalyptic number.

1313420003 is a deficient number, since it is larger than the sum of its proper divisors (187631437).

1313420003 is an equidigital number, since it uses as much as digits as its factorization.

1313420003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187631436.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1313420003 is about 36241.1368889002. The cubic root of 1313420003 is about 1095.1355455873.

Adding to 1313420003 its reverse (3000243131), we get a palindrome (4313663134).

The spelling of 1313420003 in words is "one billion, three hundred thirteen million, four hundred twenty thousand, three".