1311401003 has 8 divisors (see below), whose sum is σ = 1461058560. Its totient is φ = 1166816680.

The previous prime is 1311400999. The next prime is 1311401009. The reversal of 1311401003 is 3001041131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311401003 - 2² = 1311400999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311401009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267763 + ... + 1268796.

It is an arithmetic number, because the mean of its divisors is an integer number (182632320).

Almost surely, 2^1311401003 is an apocalyptic number.

1311401003 is a deficient number, since it is larger than the sum of its proper divisors (149657557).

1311401003 is a wasteful number, since it uses less digits than its factorization.

1311401003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536617.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1311401003 is about 36213.2710894777. The cubic root of 1311401003 is about 1094.5741073592.

Adding to 1311401003 its reverse (3001041131), we get a palindrome (4312442134).

The spelling of 1311401003 in words is "one billion, three hundred eleven million, four hundred one thousand, three".