12281954203 has 4 divisors (see below), whose sum is σ = 12298485168. Its totient is φ = 12265423240.

The previous prime is 12281954197. The next prime is 12281954213. The reversal of 12281954203 is 30245918221.

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-12281954203 is a prime.

It is a super-3 number, since 3×12281954203³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12281954213) 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, 8264368 + ... + 8265853.

It is an arithmetic number, because the mean of its divisors is an integer number (3074621292).

Almost surely, 2^12281954203 is an apocalyptic number.

12281954203 is a deficient number, since it is larger than the sum of its proper divisors (16530965).

12281954203 is an equidigital number, since it uses as much as digits as its factorization.

12281954203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16530964.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 12281954203 in words is "twelve billion, two hundred eighty-one million, nine hundred fifty-four thousand, two hundred three".