1421321353 has 4 divisors (see below), whose sum is σ = 1496127760. Its totient is φ = 1346514948.

The previous prime is 1421321347. The next prime is 1421321393. The reversal of 1421321353 is 3531231241.

It is a happy number.

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 1421321353 - 2²¹ = 1419224201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421321303) 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, 37403175 + ... + 37403212.

It is an arithmetic number, because the mean of its divisors is an integer number (374031940).

Almost surely, 2^1421321353 is an apocalyptic number.

It is an amenable number.

1421321353 is a deficient number, since it is larger than the sum of its proper divisors (74806407).

1421321353 is an equidigital number, since it uses as much as digits as its factorization.

1421321353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74806406.

The product of its digits is 2160, while the sum is 25.

The square root of 1421321353 is about 37700.4158199880. The cubic root of 1421321353 is about 1124.3393923766.

Adding to 1421321353 its reverse (3531231241), we get a palindrome (4952552594).

The spelling of 1421321353 in words is "one billion, four hundred twenty-one million, three hundred twenty-one thousand, three hundred fifty-three".