12138310276 has 27 divisors (see below), whose sum is σ = 21961733157. Its totient is φ = 5870070720.

The previous prime is 12138310271. The next prime is 12138310291. The reversal of 12138310276 is 67201383121.

The square root of 12138310276 is 110174.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6151264900 + 5987045376 = 78430^2 + 77376^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12138310271) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6829900 + ... + 6831676.

Almost surely, 2^12138310276 is an apocalyptic number.

12138310276 is the 110174-th square number.

It is an amenable number.

12138310276 is a deficient number, since it is larger than the sum of its proper divisors (9823422881).

12138310276 is an frugal number, since it uses more digits than its factorization.

12138310276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 12138310276 its reverse (67201383121), we get a palindrome (79339693397).

The spelling of 12138310276 in words is "twelve billion, one hundred thirty-eight million, three hundred ten thousand, two hundred seventy-six".