1423224121 has 4 divisors (see below), whose sum is σ = 1552608144. Its totient is φ = 1293840100.

The previous prime is 1423224119. The next prime is 1423224149. The reversal of 1423224121 is 1214223241.

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 1423224121 - 2¹ = 1423224119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423224092 and 1423224101.

It is not an unprimeable number, because it can be changed into a prime (1423224151) 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, 64691995 + ... + 64692016.

It is an arithmetic number, because the mean of its divisors is an integer number (388152036).

Almost surely, 2^1423224121 is an apocalyptic number.

1423224121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1423224121 is a deficient number, since it is larger than the sum of its proper divisors (129384023).

1423224121 is a wasteful number, since it uses less digits than its factorization.

1423224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129384022.

The product of its digits is 768, while the sum is 22.

The square root of 1423224121 is about 37725.6427513170. The cubic root of 1423224121 is about 1124.8408982575.

Adding to 1423224121 its reverse (1214223241), we get a palindrome (2637447362).

The spelling of 1423224121 in words is "one billion, four hundred twenty-three million, two hundred twenty-four thousand, one hundred twenty-one".