12051800841 has 8 divisors (see below), whose sum is σ = 16069789024. Its totient is φ = 8034173280.

The previous prime is 12051800821. The next prime is 12051800863. The reversal of 12051800841 is 14800815021.

It is a happy number.

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

It is not a de Polignac number, because 12051800841 - 2²² = 12047606537 is a prime.

It is a super-2 number, since 2×12051800841² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12051800799 and 12051800808.

It is not an unprimeable number, because it can be changed into a prime (12051800821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990 + ... + 155256.

It is an arithmetic number, because the mean of its divisors is an integer number (2008723628).

Almost surely, 2^12051800841 is an apocalyptic number.

It is an amenable number.

12051800841 is a deficient number, since it is larger than the sum of its proper divisors (4017988183).

12051800841 is a wasteful number, since it uses less digits than its factorization.

12051800841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180311.

The product of its (nonzero) digits is 2560, while the sum is 30.

The spelling of 12051800841 in words is "twelve billion, fifty-one million, eight hundred thousand, eight hundred forty-one".