1121445443401 has 4 divisors (see below), whose sum is σ = 1125408148432. Its totient is φ = 1117482738372.

The previous prime is 1121445443387. The next prime is 1121445443483. The reversal of 1121445443401 is 1043445441211.

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 1121445443401 - 2⁷ = 1121445443273 is a prime.

It is a super-3 number, since 3×1121445443401³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121445443491) 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, 1981352091 + ... + 1981352656.

It is an arithmetic number, because the mean of its divisors is an integer number (281352037108).

Almost surely, 2^{1121445443401} is an apocalyptic number.

It is an amenable number.

1121445443401 is a deficient number, since it is larger than the sum of its proper divisors (3962705031).

1121445443401 is an equidigital number, since it uses as much as digits as its factorization.

1121445443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962705030.

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 1121445443401 in words is "one trillion, one hundred twenty-one billion, four hundred forty-five million, four hundred forty-three thousand, four hundred one".