1983563011 has 2 divisors, whose sum is σ = 1983563012. Its totient is φ = 1983563010.

The previous prime is 1983563003. The next prime is 1983563027. The reversal of 1983563011 is 1103653891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1983563011 - 2³ = 1983563003 is a prime.

It is a super-2 number, since 2×1983563011² = 7869044437214772242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1983563411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991781505 + 991781506.

It is an arithmetic number, because the mean of its divisors is an integer number (991781506).

Almost surely, 2^1983563011 is an apocalyptic number.

1983563011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983563011 is an equidigital number, since it uses as much as digits as its factorization.

1983563011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1983563011 is about 44537.2092861688. The cubic root of 1983563011 is about 1256.4599995595.

The spelling of 1983563011 in words is "one billion, nine hundred eighty-three million, five hundred sixty-three thousand, eleven".