1244028102025 has 12 divisors (see below), whose sum is σ = 1592355971584. Its totient is φ = 963118530000.

The previous prime is 1244028102017. The next prime is 1244028102041. The reversal of 1244028102025 is 5202018204421.

It is a happy number.

It is not a de Polignac number, because 1244028102025 - 2³ = 1244028102017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 802598001 + ... + 802599550.

Almost surely, 2^{1244028102025} is an apocalyptic number.

It is an amenable number.

1244028102025 is a deficient number, since it is larger than the sum of its proper divisors (348327869559).

1244028102025 is a wasteful number, since it uses less digits than its factorization.

1244028102025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605197592 (or 1605197587 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The spelling of 1244028102025 in words is "one trillion, two hundred forty-four billion, twenty-eight million, one hundred two thousand, twenty-five".