1284038807121 has 12 divisors (see below), whose sum is σ = 2119683110272. Its totient is φ = 733736461176.

The previous prime is 1284038807099. The next prime is 1284038807141. The reversal of 1284038807121 is 1217088304821.

It is not a de Polignac number, because 1284038807121 - 2¹¹ = 1284038805073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1284038807141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10190784121 + ... + 10190784246.

Almost surely, 2^{1284038807121} is an apocalyptic number.

It is an amenable number.

1284038807121 is a deficient number, since it is larger than the sum of its proper divisors (835644303151).

1284038807121 is a wasteful number, since it uses less digits than its factorization.

1284038807121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381568380 (or 20381568377 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 1284038807121 in words is "one trillion, two hundred eighty-four billion, thirty-eight million, eight hundred seven thousand, one hundred twenty-one".