11420123193 has 6 divisors (see below), whose sum is σ = 16495733514. Its totient is φ = 7613415456.

The previous prime is 11420123191. The next prime is 11420123243. The reversal of 11420123193 is 39132102411.

11420123193 is a `hidden beast` number, since 1 + 1 + 420 + 1 + 231 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5847202089 + 5572921104 = 76467^2 + 74652^2 .

It is not a de Polignac number, because 11420123193 - 2¹ = 11420123191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11420123191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634451280 + ... + 634451297.

It is an arithmetic number, because the mean of its divisors is an integer number (2749288919).

Almost surely, 2^11420123193 is an apocalyptic number.

It is an amenable number.

11420123193 is a deficient number, since it is larger than the sum of its proper divisors (5075610321).

11420123193 is a wasteful number, since it uses less digits than its factorization.

11420123193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268902583 (or 1268902580 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 11420123193 in words is "eleven billion, four hundred twenty million, one hundred twenty-three thousand, one hundred ninety-three".