191102983 has 2 divisors, whose sum is σ = 191102984. Its totient is φ = 191102982.

The previous prime is 191102981. The next prime is 191103023. The reversal of 191102983 is 389201191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 191102983 - 2¹ = 191102981 is a prime.

It is a super-2 number, since 2×191102983² = 73040700222996578, which contains 22 as substring.

Together with 191102981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191102981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95551491 + 95551492.

It is an arithmetic number, because the mean of its divisors is an integer number (95551492).

Almost surely, 2^191102983 is an apocalyptic number.

191102983 is a deficient number, since it is larger than the sum of its proper divisors (1).

191102983 is an equidigital number, since it uses as much as digits as its factorization.

191102983 is an odious number, because the sum of its binary digits is odd.

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

The square root of 191102983 is about 13824.0002531829. Note that the first 3 decimals coincide. The cubic root of 191102983 is about 576.0000070329. Note that the first 5 decimals are identical.

The spelling of 191102983 in words is "one hundred ninety-one million, one hundred two thousand, nine hundred eighty-three".