1211121083 has 2 divisors, whose sum is σ = 1211121084. Its totient is φ = 1211121082.

The previous prime is 1211121077. The next prime is 1211121091. The reversal of 1211121083 is 3801211121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3801211121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211121083 - 2¹² = 1211116987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211121013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605560541 + 605560542.

It is an arithmetic number, because the mean of its divisors is an integer number (605560542).

Almost surely, 2^1211121083 is an apocalyptic number.

1211121083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211121083 is an equidigital number, since it uses as much as digits as its factorization.

1211121083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 1211121083 is about 34801.1649661330. The cubic root of 1211121083 is about 1065.9312339554.

The spelling of 1211121083 in words is "one billion, two hundred eleven million, one hundred twenty-one thousand, eighty-three".