1445402421011 has 4 divisors (see below), whose sum is σ = 1451605865112. Its totient is φ = 1439198976912.

The previous prime is 1445402421007. The next prime is 1445402421017. The reversal of 1445402421011 is 1101242045441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1445402421011 - 2² = 1445402421007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445402421017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3101721701 + ... + 3101722166.

It is an arithmetic number, because the mean of its divisors is an integer number (362901466278).

Almost surely, 2^{1445402421011} is an apocalyptic number.

1445402421011 is a deficient number, since it is larger than the sum of its proper divisors (6203444101).

1445402421011 is an equidigital number, since it uses as much as digits as its factorization.

1445402421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6203444100.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 1445402421011 its reverse (1101242045441), we get a palindrome (2546644466452).

The spelling of 1445402421011 in words is "one trillion, four hundred forty-five billion, four hundred two million, four hundred twenty-one thousand, eleven".