1421203133 has 4 divisors (see below), whose sum is σ = 1624232160. Its totient is φ = 1218174108.

The previous prime is 1421203117. The next prime is 1421203139. The reversal of 1421203133 is 3313021241.

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 1421203133 - 2⁴ = 1421203117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421203139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101514503 + ... + 101514516.

It is an arithmetic number, because the mean of its divisors is an integer number (406058040).

Almost surely, 2^1421203133 is an apocalyptic number.

It is an amenable number.

1421203133 is a deficient number, since it is larger than the sum of its proper divisors (203029027).

1421203133 is an equidigital number, since it uses as much as digits as its factorization.

1421203133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203029026.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1421203133 is about 37698.8479001680. The cubic root of 1421203133 is about 1124.3082187817.

Adding to 1421203133 its reverse (3313021241), we get a palindrome (4734224374).

The spelling of 1421203133 in words is "one billion, four hundred twenty-one million, two hundred three thousand, one hundred thirty-three".