1313120003 has 16 divisors (see below), whose sum is σ = 1432378080. Its totient is φ = 1196557824.

The previous prime is 1313119999. The next prime is 1313120023. The reversal of 1313120003 is 3000213131.

It is a cyclic number.

It is not a de Polignac number, because 1313120003 - 2² = 1313119999 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 1313120003.

It is not an unprimeable number, because it can be changed into a prime (1313120023) 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, 393500 + ... + 396822.

It is an arithmetic number, because the mean of its divisors is an integer number (89523630).

Almost surely, 2^1313120003 is an apocalyptic number.

1313120003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313120003 is a deficient number, since it is larger than the sum of its proper divisors (119258077).

1313120003 is a wasteful number, since it uses less digits than its factorization.

1313120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1313120003 is about 36236.9977095233. The cubic root of 1313120003 is about 1095.0521587854.

Adding to 1313120003 its reverse (3000213131), we get a palindrome (4313333134).

The spelling of 1313120003 in words is "one billion, three hundred thirteen million, one hundred twenty thousand, three".