12273043100 has 36 divisors (see below), whose sum is σ = 26640341784. Its totient is φ = 4907772480.

The previous prime is 12273043099. The next prime is 12273043147. The reversal of 12273043100 is 134037221.

It is a super-2 number, since 2×12273043100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 363539 + ... + 395861.

It is an arithmetic number, because the mean of its divisors is an integer number (740009494).

Almost surely, 2^12273043100 is an apocalyptic number.

12273043100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12273043100 is an abundant number, since it is smaller than the sum of its proper divisors (14367298684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12273043100 is a wasteful number, since it uses less digits than its factorization.

12273043100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36134 (or 36127 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The spelling of 12273043100 in words is "twelve billion, two hundred seventy-three million, forty-three thousand, one hundred".