11105620623 has 12 divisors (see below), whose sum is σ = 16042473720. Its totient is φ = 7403275536.

The previous prime is 11105620619. The next prime is 11105620627. The reversal of 11105620623 is 32602650111.

11105620623 is a `hidden beast` number, since 1 + 1 + 10 + 5 + 6 + 20 + 623 = 666.

It is an interprime number because it is at equal distance from previous prime (11105620619) and next prime (11105620627).

It is not a de Polignac number, because 11105620623 - 2² = 11105620619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105620627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166693 + ... + 223601.

It is an arithmetic number, because the mean of its divisors is an integer number (1336872810).

Almost surely, 2^11105620623 is an apocalyptic number.

11105620623 is a deficient number, since it is larger than the sum of its proper divisors (4936853097).

11105620623 is a wasteful number, since it uses less digits than its factorization.

11105620623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78598 (or 78595 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 11105620623 in words is "eleven billion, one hundred five million, six hundred twenty thousand, six hundred twenty-three".