1203331013 has 2 divisors, whose sum is σ = 1203331014. Its totient is φ = 1203331012.

The previous prime is 1203331007. The next prime is 1203331021. The reversal of 1203331013 is 3101333021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075708804 + 127622209 = 32798^2 + 11297^2 .

It is an emirp because it is prime and its reverse (3101333021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203331013 - 2²⁸ = 934895557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1203330982 and 1203331000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223331013) 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, 601665506 + 601665507.

It is an arithmetic number, because the mean of its divisors is an integer number (601665507).

Almost surely, 2^1203331013 is an apocalyptic number.

It is an amenable number.

1203331013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203331013 is an equidigital number, since it uses as much as digits as its factorization.

1203331013 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 17.

The square root of 1203331013 is about 34689.0618639363. The cubic root of 1203331013 is about 1063.6409189893.

Adding to 1203331013 its reverse (3101333021), we get a palindrome (4304664034).

The spelling of 1203331013 in words is "one billion, two hundred three million, three hundred thirty-one thousand, thirteen".