1201109983 has 2 divisors, whose sum is σ = 1201109984. Its totient is φ = 1201109982.

The previous prime is 1201109977. The next prime is 1201110007. The reversal of 1201109983 is 3899011021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201109983 - 2⁵ = 1201109951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201109083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600554991 + 600554992.

It is an arithmetic number, because the mean of its divisors is an integer number (600554992).

Almost surely, 2^1201109983 is an apocalyptic number.

1201109983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201109983 is an equidigital number, since it uses as much as digits as its factorization.

1201109983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1201109983 is about 34657.0336728347. The cubic root of 1201109983 is about 1062.9861162519.

The spelling of 1201109983 in words is "one billion, two hundred one million, one hundred nine thousand, nine hundred eighty-three".