11863238511 has 8 divisors (see below), whose sum is σ = 15818550784. Its totient is φ = 7908375960.

The previous prime is 11863238489. The next prime is 11863238533. The reversal of 11863238511 is 11583236811.

It is an interprime number because it is at equal distance from previous prime (11863238489) and next prime (11863238533).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11863238511 - 2¹⁷ = 11863107439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11863238511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11863238711) 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 7 ways as a sum of consecutive naturals, for example, 45121 + ... + 160506.

It is an arithmetic number, because the mean of its divisors is an integer number (1977318848).

Almost surely, 2^11863238511 is an apocalyptic number.

11863238511 is a deficient number, since it is larger than the sum of its proper divisors (3955312273).

11863238511 is a wasteful number, since it uses less digits than its factorization.

11863238511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224861.

The product of its digits is 34560, while the sum is 39.

The spelling of 11863238511 in words is "eleven billion, eight hundred sixty-three million, two hundred thirty-eight thousand, five hundred eleven".