11211030345 has 16 divisors (see below), whose sum is σ = 17984986560. Its totient is φ = 5963436864.

The previous prime is 11211030343. The next prime is 11211030349. The reversal of 11211030345 is 54303011211.

It is not a de Polignac number, because 11211030345 - 2¹ = 11211030343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11211030343) 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 in 15 ways as a sum of consecutive naturals, for example, 980334 + ... + 991703.

It is an arithmetic number, because the mean of its divisors is an integer number (1124061660).

Almost surely, 2^11211030345 is an apocalyptic number.

11211030345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11211030345 is a deficient number, since it is larger than the sum of its proper divisors (6773956215).

11211030345 is a wasteful number, since it uses less digits than its factorization.

11211030345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972424.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 11211030345 its reverse (54303011211), we get a palindrome (65514041556).

The spelling of 11211030345 in words is "eleven billion, two hundred eleven million, thirty thousand, three hundred forty-five".