1203340531 has 2 divisors, whose sum is σ = 1203340532. Its totient is φ = 1203340530.

The previous prime is 1203340513. The next prime is 1203340549. The reversal of 1203340531 is 1350433021.

Together with previous prime (1203340513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (1203340513) and next prime (1203340549).

It is a cyclic number.

It is not a de Polignac number, because 1203340531 - 2⁵ = 1203340499 is a prime.

It is a super-2 number, since 2×1203340531² = 2896056867094723922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1203340571) 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, 601670265 + 601670266.

It is an arithmetic number, because the mean of its divisors is an integer number (601670266).

Almost surely, 2^1203340531 is an apocalyptic number.

1203340531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203340531 is an equidigital number, since it uses as much as digits as its factorization.

1203340531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1203340531 is about 34689.1990538842. The cubic root of 1203340531 is about 1063.6437233459.

Adding to 1203340531 its reverse (1350433021), we get a palindrome (2553773552).

The spelling of 1203340531 in words is "one billion, two hundred three million, three hundred forty thousand, five hundred thirty-one".