1441420121 has 4 divisors (see below), whose sum is σ = 1441497600. Its totient is φ = 1441342644.

The previous prime is 1441420109. The next prime is 1441420133. The reversal of 1441420121 is 1210241441.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1210241441 = 17 ⋅71190673.

It is an interprime number because it is at equal distance from previous prime (1441420109) and next prime (1441420133).

It is a cyclic number.

It is not a de Polignac number, because 1441420121 - 2¹⁴ = 1441403737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1441420093 and 1441420102.

It is not an unprimeable number, because it can be changed into a prime (1441420181) 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, 7820 + ... + 54258.

It is an arithmetic number, because the mean of its divisors is an integer number (360374400).

Almost surely, 2^1441420121 is an apocalyptic number.

It is an amenable number.

1441420121 is a deficient number, since it is larger than the sum of its proper divisors (77479).

1441420121 is an equidigital number, since it uses as much as digits as its factorization.

1441420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77478.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1441420121 is about 37966.0390480756. The cubic root of 1441420121 is about 1129.6143307558.

Adding to 1441420121 its reverse (1210241441), we get a palindrome (2651661562).

The spelling of 1441420121 in words is "one billion, four hundred forty-one million, four hundred twenty thousand, one hundred twenty-one".