1421331373 has 8 divisors (see below), whose sum is σ = 1772049600. Its totient is φ = 1107530880.

The previous prime is 1421331361. The next prime is 1421331377. The reversal of 1421331373 is 3731331241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421331373 - 2²⁹ = 884460461 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 (1421331377) 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 7 ways as a sum of consecutive naturals, for example, 9229348 + ... + 9229501.

It is an arithmetic number, because the mean of its divisors is an integer number (221506200).

Almost surely, 2^1421331373 is an apocalyptic number.

It is an amenable number.

1421331373 is a deficient number, since it is larger than the sum of its proper divisors (350718227).

1421331373 is a wasteful number, since it uses less digits than its factorization.

1421331373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18458867.

The product of its digits is 4536, while the sum is 28.

The square root of 1421331373 is about 37700.5487095347. The cubic root of 1421331373 is about 1124.3420344848.

The spelling of 1421331373 in words is "one billion, four hundred twenty-one million, three hundred thirty-one thousand, three hundred seventy-three".