1101953663 has 2 divisors, whose sum is σ = 1101953664. Its totient is φ = 1101953662.

The previous prime is 1101953653. The next prime is 1101953693. The reversal of 1101953663 is 3663591011.

It is a weak prime.

It is an emirp because it is prime and its reverse (3663591011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101953663 - 2⁸ = 1101953407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101953603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550976831 + 550976832.

It is an arithmetic number, because the mean of its divisors is an integer number (550976832).

Almost surely, 2^1101953663 is an apocalyptic number.

1101953663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101953663 is an equidigital number, since it uses as much as digits as its factorization.

1101953663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1101953663 is about 33195.6874156870. The cubic root of 1101953663 is about 1032.8908835481.

The spelling of 1101953663 in words is "one billion, one hundred one million, nine hundred fifty-three thousand, six hundred sixty-three".