123585011 has 4 divisors (see below), whose sum is σ = 134820024. Its totient is φ = 112350000.

The previous prime is 123584983. The next prime is 123585013. The reversal of 123585011 is 110585321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123585011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123585013) 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 3 ways as a sum of consecutive naturals, for example, 5617490 + ... + 5617511.

It is an arithmetic number, because the mean of its divisors is an integer number (33705006).

Almost surely, 2^123585011 is an apocalyptic number.

123585011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123585011 is a deficient number, since it is larger than the sum of its proper divisors (11235013).

123585011 is a wasteful number, since it uses less digits than its factorization.

123585011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235012.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 123585011 is about 11116.8795531840. The cubic root of 123585011 is about 498.1061839781.

The spelling of 123585011 in words is "one hundred twenty-three million, five hundred eighty-five thousand, eleven".