12120276481 has 4 divisors (see below), whose sum is σ = 12378154752. Its totient is φ = 11862398212.

The previous prime is 12120276457. The next prime is 12120276521. The reversal of 12120276481 is 18467202121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12120276481 - 2¹¹ = 12120274433 is a prime.

It is a super-2 number, since 2×12120276481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120276451) 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, 128939065 + ... + 128939158.

It is an arithmetic number, because the mean of its divisors is an integer number (3094538688).

Almost surely, 2^12120276481 is an apocalyptic number.

It is an amenable number.

12120276481 is a deficient number, since it is larger than the sum of its proper divisors (257878271).

12120276481 is an equidigital number, since it uses as much as digits as its factorization.

12120276481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257878270.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 12120276481 in words is "twelve billion, one hundred twenty million, two hundred seventy-six thousand, four hundred eighty-one".