1421213433 has 8 divisors (see below), whose sum is σ = 1994685600. Its totient is φ = 897608448.

The previous prime is 1421213429. The next prime is 1421213459. The reversal of 1421213433 is 3343121241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421213433 - 2² = 1421213429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421213473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12466728 + ... + 12466841.

It is an arithmetic number, because the mean of its divisors is an integer number (249335700).

Almost surely, 2^1421213433 is an apocalyptic number.

It is an amenable number.

1421213433 is a deficient number, since it is larger than the sum of its proper divisors (573472167).

1421213433 is a wasteful number, since it uses less digits than its factorization.

1421213433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24933591.

The product of its digits is 1728, while the sum is 24.

The square root of 1421213433 is about 37698.9845088697. The cubic root of 1421213433 is about 1124.3109348717.

Adding to 1421213433 its reverse (3343121241), we get a palindrome (4764334674).

The spelling of 1421213433 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, four hundred thirty-three".