1203200261 has 2 divisors, whose sum is σ = 1203200262. Its totient is φ = 1203200260.

The previous prime is 1203200209. The next prime is 1203200321. The reversal of 1203200261 is 1620023021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 647702500 + 555497761 = 25450^2 + 23569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203200261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203200161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601600130 + 601600131.

It is an arithmetic number, because the mean of its divisors is an integer number (601600131).

Almost surely, 2^1203200261 is an apocalyptic number.

It is an amenable number.

1203200261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203200261 is an equidigital number, since it uses as much as digits as its factorization.

1203200261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1203200261 is about 34687.1771840835. The cubic root of 1203200261 is about 1063.6023930937.

Adding to 1203200261 its reverse (1620023021), we get a palindrome (2823223282).

The spelling of 1203200261 in words is "one billion, two hundred three million, two hundred thousand, two hundred sixty-one".