1144001421025 has 48 divisors (see below), whose sum is σ = 1489944012480. Its totient is φ = 870473260800.

The previous prime is 1144001420993. The next prime is 1144001421061. The reversal of 1144001421025 is 5201241004411.

It is not a de Polignac number, because 1144001421025 - 2⁵ = 1144001420993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8048271 + ... + 8189179.

It is an arithmetic number, because the mean of its divisors is an integer number (31040500260).

Almost surely, 2^{1144001421025} is an apocalyptic number.

It is an amenable number.

1144001421025 is a deficient number, since it is larger than the sum of its proper divisors (345942591455).

1144001421025 is a wasteful number, since it uses less digits than its factorization.

1144001421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141154 (or 141149 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 1144001421025 its reverse (5201241004411), we get a palindrome (6345242425436).

The spelling of 1144001421025 in words is "one trillion, one hundred forty-four billion, one million, four hundred twenty-one thousand, twenty-five".