1201203257 has 2 divisors, whose sum is σ = 1201203258. Its totient is φ = 1201203256.

The previous prime is 1201203253. The next prime is 1201203301. The reversal of 1201203257 is 7523021021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129699321 + 71503936 = 33611^2 + 8456^2 .

It is an emirp because it is prime and its reverse (7523021021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201203257 - 2² = 1201203253 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201203251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600601628 + 600601629.

It is an arithmetic number, because the mean of its divisors is an integer number (600601629).

Almost surely, 2^1201203257 is an apocalyptic number.

It is an amenable number.

1201203257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201203257 is an equidigital number, since it uses as much as digits as its factorization.

1201203257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1201203257 is about 34658.3793187160. The cubic root of 1201203257 is about 1063.0136314676.

Adding to 1201203257 its reverse (7523021021), we get a palindrome (8724224278).

The spelling of 1201203257 in words is "one billion, two hundred one million, two hundred three thousand, two hundred fifty-seven".