1421723730633 has 4 divisors (see below), whose sum is σ = 1895631640848. Its totient is φ = 947815820420.

The previous prime is 1421723730599. The next prime is 1421723730659. The reversal of 1421723730633 is 3360373271241.

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 1421723730633 - 2⁸ = 1421723730377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421723730233) 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, 236953955103 + ... + 236953955108.

It is an arithmetic number, because the mean of its divisors is an integer number (473907910212).

Almost surely, 2^{1421723730633} is an apocalyptic number.

It is an amenable number.

1421723730633 is a deficient number, since it is larger than the sum of its proper divisors (473907910215).

1421723730633 is an equidigital number, since it uses as much as digits as its factorization.

1421723730633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473907910214.

The product of its (nonzero) digits is 381024, while the sum is 42.

The spelling of 1421723730633 in words is "one trillion, four hundred twenty-one billion, seven hundred twenty-three million, seven hundred thirty thousand, six hundred thirty-three".