1421202323 has 4 divisors (see below), whose sum is σ = 1421654808. Its totient is φ = 1420749840.

The previous prime is 1421202317. The next prime is 1421202371. The reversal of 1421202323 is 3232021241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421202323 - 2⁶ = 1421202259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421202295 and 1421202304.

It is not an unprimeable number, because it can be changed into a prime (1421202383) 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, 221498 + ... + 227823.

It is an arithmetic number, because the mean of its divisors is an integer number (355413702).

Almost surely, 2^1421202323 is an apocalyptic number.

1421202323 is a deficient number, since it is larger than the sum of its proper divisors (452485).

1421202323 is an equidigital number, since it uses as much as digits as its factorization.

1421202323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452484.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1421202323 is about 37698.8371571326. The cubic root of 1421202323 is about 1124.3080051857.

Adding to 1421202323 its reverse (3232021241), we get a palindrome (4653223564).

The spelling of 1421202323 in words is "one billion, four hundred twenty-one million, two hundred two thousand, three hundred twenty-three".