12171946234 has 12 divisors (see below), whose sum is σ = 21238804314. Its totient is φ = 5216548344.

The previous prime is 12171946223. The next prime is 12171946243. The reversal of 12171946234 is 43264917121.

It can be written as a sum of positive squares in only one way, i.e., 12045721009 + 126225225 = 109753^2 + 11235^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62101669 + ... + 62101864.

Almost surely, 2^12171946234 is an apocalyptic number.

12171946234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12171946234 is a deficient number, since it is larger than the sum of its proper divisors (9066858080).

12171946234 is a wasteful number, since it uses less digits than its factorization.

12171946234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124203549 (or 124203542 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The spelling of 12171946234 in words is "twelve billion, one hundred seventy-one million, nine hundred forty-six thousand, two hundred thirty-four".