453121021442 has 8 divisors (see below), whose sum is σ = 680937876732. Its totient is φ = 226141729200.

The previous prime is 453121021417. The next prime is 453121021477. The reversal of 453121021442 is 244120121354.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 417017601361 + 36103420081 = 645769^2 + 190009^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209389409 + ... + 209391572.

Almost surely, 2^453121021442 is an apocalyptic number.

453121021442 is a deficient number, since it is larger than the sum of its proper divisors (227816855290).

453121021442 is a wasteful number, since it uses less digits than its factorization.

453121021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418781524.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 453121021442 its reverse (244120121354), we get a palindrome (697241142796).

The spelling of 453121021442 in words is "four hundred fifty-three billion, one hundred twenty-one million, twenty-one thousand, four hundred forty-two".