1444121423 has 8 divisors (see below), whose sum is σ = 1529407728. Its totient is φ = 1358872704.

The previous prime is 1444121407. The next prime is 1444121443. The reversal of 1444121423 is 3241214441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444121423 - 2⁴ = 1444121407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444121392 and 1444121401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444121443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123665 + ... + 134837.

It is an arithmetic number, because the mean of its divisors is an integer number (191175966).

Almost surely, 2^1444121423 is an apocalyptic number.

1444121423 is a deficient number, since it is larger than the sum of its proper divisors (85286305).

1444121423 is a wasteful number, since it uses less digits than its factorization.

1444121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18793.

The product of its digits is 3072, while the sum is 26.

The square root of 1444121423 is about 38001.5976374678. The cubic root of 1444121423 is about 1130.3195439006.

Adding to 1444121423 its reverse (3241214441), we get a palindrome (4685335864).

The spelling of 1444121423 in words is "one billion, four hundred forty-four million, one hundred twenty-one thousand, four hundred twenty-three".