1020313403 has 2 divisors, whose sum is σ = 1020313404. Its totient is φ = 1020313402.

The previous prime is 1020313363. The next prime is 1020313451. The reversal of 1020313403 is 3043130201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3043130201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020313403 - 2⁶ = 1020313339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020313303) 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, 510156701 + 510156702.

It is an arithmetic number, because the mean of its divisors is an integer number (510156702).

Almost surely, 2^1020313403 is an apocalyptic number.

1020313403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020313403 is an equidigital number, since it uses as much as digits as its factorization.

1020313403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1020313403 is about 31942.3449827967. The cubic root of 1020313403 is about 1006.7257965769.

Adding to 1020313403 its reverse (3043130201), we get a palindrome (4063443604).

The spelling of 1020313403 in words is "one billion, twenty million, three hundred thirteen thousand, four hundred three".