11812286123 has 4 divisors (see below), whose sum is σ = 12886130328. Its totient is φ = 10738441920.

The previous prime is 11812286107. The next prime is 11812286153. The reversal of 11812286123 is 32168221811.

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

It is a cyclic number.

It is not a de Polignac number, because 11812286123 - 2⁴ = 11812286107 is a prime.

It is a super-2 number, since 2×11812286123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11812286153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536922086 + ... + 536922107.

It is an arithmetic number, because the mean of its divisors is an integer number (3221532582).

Almost surely, 2^11812286123 is an apocalyptic number.

11812286123 is a deficient number, since it is larger than the sum of its proper divisors (1073844205).

11812286123 is a wasteful number, since it uses less digits than its factorization.

11812286123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073844204.

The product of its digits is 9216, while the sum is 35.

The spelling of 11812286123 in words is "eleven billion, eight hundred twelve million, two hundred eighty-six thousand, one hundred twenty-three".