1203233020261 has 2 divisors, whose sum is σ = 1203233020262. Its totient is φ = 1203233020260.

The previous prime is 1203233020189. The next prime is 1203233020361. The reversal of 1203233020261 is 1620203323021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1118147630625 + 85085389636 = 1057425^2 + 291694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203233020261 - 2¹¹ = 1203233018213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203233020361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601616510130 + 601616510131.

It is an arithmetic number, because the mean of its divisors is an integer number (601616510131).

Almost surely, 2^{1203233020261} is an apocalyptic number.

It is an amenable number.

1203233020261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203233020261 is an equidigital number, since it uses as much as digits as its factorization.

1203233020261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1203233020261 its reverse (1620203323021), we get a palindrome (2823436343282).

The spelling of 1203233020261 in words is "one trillion, two hundred three billion, two hundred thirty-three million, twenty thousand, two hundred sixty-one".