1211136383 has 2 divisors, whose sum is σ = 1211136384. Its totient is φ = 1211136382.

The previous prime is 1211136359. The next prime is 1211136391. The reversal of 1211136383 is 3836311121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211136383 - 2¹² = 1211132287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211136683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605568191 + 605568192.

It is an arithmetic number, because the mean of its divisors is an integer number (605568192).

Almost surely, 2^1211136383 is an apocalyptic number.

1211136383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211136383 is an equidigital number, since it uses as much as digits as its factorization.

1211136383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 1211136383 is about 34801.3847856662. The cubic root of 1211136383 is about 1065.9357225457.

The spelling of 1211136383 in words is "one billion, two hundred eleven million, one hundred thirty-six thousand, three hundred eighty-three".