1421323033 has 4 divisors (see below), whose sum is σ = 1530655588. Its totient is φ = 1311990480.

The previous prime is 1421323021. The next prime is 1421323037. The reversal of 1421323033 is 3303231241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3303231241 = 7591 ⋅435151.

It can be written as a sum of positive squares in 2 ways, for example, as 276989449 + 1144333584 = 16643^2 + 33828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421323033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421322995 and 1421323013.

It is not an unprimeable number, because it can be changed into a prime (1421323037) 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, 54666258 + ... + 54666283.

It is an arithmetic number, because the mean of its divisors is an integer number (382663897).

Almost surely, 2^1421323033 is an apocalyptic number.

1421323033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1421323033 is a deficient number, since it is larger than the sum of its proper divisors (109332555).

1421323033 is a wasteful number, since it uses less digits than its factorization.

1421323033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109332554.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1421323033 is about 37700.4381009028. The cubic root of 1421323033 is about 1124.3398353657.

Adding to 1421323033 its reverse (3303231241), we get a palindrome (4724554274).

The spelling of 1421323033 in words is "one billion, four hundred twenty-one million, three hundred twenty-three thousand, thirty-three".