1031201303203 has 2 divisors, whose sum is σ = 1031201303204. Its totient is φ = 1031201303202.

The previous prime is 1031201303191. The next prime is 1031201303243. The reversal of 1031201303203 is 3023031021301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031201303203 is a prime.

It is a super-2 number, since 2×1031201303203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1031201303243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515600651601 + 515600651602.

It is an arithmetic number, because the mean of its divisors is an integer number (515600651602).

Almost surely, 2^{1031201303203} is an apocalyptic number.

1031201303203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031201303203 is an equidigital number, since it uses as much as digits as its factorization.

1031201303203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1031201303203 its reverse (3023031021301), we get a palindrome (4054232324504).

The spelling of 1031201303203 in words is "one trillion, thirty-one billion, two hundred one million, three hundred three thousand, two hundred three".