1310545403 has 2 divisors, whose sum is σ = 1310545404. Its totient is φ = 1310545402.

The previous prime is 1310545399. The next prime is 1310545417. The reversal of 1310545403 is 3045450131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310545403 - 2² = 1310545399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1310545493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655272701 + 655272702.

It is an arithmetic number, because the mean of its divisors is an integer number (655272702).

Almost surely, 2^1310545403 is an apocalyptic number.

1310545403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310545403 is an equidigital number, since it uses as much as digits as its factorization.

1310545403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1310545403 is about 36201.4558132681. The cubic root of 1310545403 is about 1094.3360105072.

Adding to 1310545403 its reverse (3045450131), we get a palindrome (4355995534).

The spelling of 1310545403 in words is "one billion, three hundred ten million, five hundred forty-five thousand, four hundred three".