1231300303 has 2 divisors, whose sum is σ = 1231300304. Its totient is φ = 1231300302.

The previous prime is 1231300267. The next prime is 1231300349. The reversal of 1231300303 is 3030031321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231300303 - 2⁹ = 1231299791 is a prime.

It is a super-2 number, since 2×1231300303² = 3032200872335783618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231300363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615650151 + 615650152.

It is an arithmetic number, because the mean of its divisors is an integer number (615650152).

Almost surely, 2^1231300303 is an apocalyptic number.

1231300303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231300303 is an equidigital number, since it uses as much as digits as its factorization.

1231300303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1231300303 is about 35089.8888997956. Note that the first 4 decimals coincide. The cubic root of 1231300303 is about 1071.8186972361.

Adding to 1231300303 its reverse (3030031321), we get a palindrome (4261331624).

The spelling of 1231300303 in words is "one billion, two hundred thirty-one million, three hundred thousand, three hundred three".