12081770233 has 4 divisors (see below), whose sum is σ = 13011137188. Its totient is φ = 11152403280.

The previous prime is 12081770219. The next prime is 12081770263. The reversal of 12081770233 is 33207718021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33207718021 = 23 ⋅1443813827.

It can be written as a sum of positive squares in 2 ways, for example, as 510895609 + 11570874624 = 22603^2 + 107568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12081770233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12081770263) 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, 464683458 + ... + 464683483.

It is an arithmetic number, because the mean of its divisors is an integer number (3252784297).

Almost surely, 2^12081770233 is an apocalyptic number.

12081770233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12081770233 is a deficient number, since it is larger than the sum of its proper divisors (929366955).

12081770233 is an equidigital number, since it uses as much as digits as its factorization.

12081770233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929366954.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 12081770233 in words is "twelve billion, eighty-one million, seven hundred seventy thousand, two hundred thirty-three".