1201213337 has 2 divisors, whose sum is σ = 1201213338. Its totient is φ = 1201213336.

The previous prime is 1201213309. The next prime is 1201213339. The reversal of 1201213337 is 7333121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926350096 + 274863241 = 30436^2 + 16579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201213337 is a prime.

Together with 1201213339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1201213339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600606668 + 600606669.

It is an arithmetic number, because the mean of its divisors is an integer number (600606669).

Almost surely, 2^1201213337 is an apocalyptic number.

It is an amenable number.

1201213337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201213337 is an equidigital number, since it uses as much as digits as its factorization.

1201213337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1201213337 is about 34658.5247377900. The cubic root of 1201213337 is about 1063.0166049159.

Adding to 1201213337 its reverse (7333121021), we get a palindrome (8534334358).

The spelling of 1201213337 in words is "one billion, two hundred one million, two hundred thirteen thousand, three hundred thirty-seven".