11071703621 has 16 divisors (see below), whose sum is σ = 12413764608. Its totient is φ = 9785966400.

The previous prime is 11071703609. The next prime is 11071703627. The reversal of 11071703621 is 12630717011.

11071703621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11071703621 - 2¹⁸ = 11071441477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11071703627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589451 + ... + 607943.

It is an arithmetic number, because the mean of its divisors is an integer number (775860288).

Almost surely, 2^11071703621 is an apocalyptic number.

11071703621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11071703621 is a deficient number, since it is larger than the sum of its proper divisors (1342060987).

11071703621 is a wasteful number, since it uses less digits than its factorization.

11071703621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20012.

The product of its (nonzero) digits is 1764, while the sum is 29.

The spelling of 11071703621 in words is "eleven billion, seventy-one million, seven hundred three thousand, six hundred twenty-one".