421033145542 has 8 divisors (see below), whose sum is σ = 643465750896. Its totient is φ = 206544561912.

The previous prime is 421033145539. The next prime is 421033145609. The reversal of 421033145542 is 245541330124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421033145498 and 421033145507.

It is a congruent number.

It is an unprimeable number.

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, 1986005298 + ... + 1986005509.

It is an arithmetic number, because the mean of its divisors is an integer number (80433218862).

Almost surely, 2^421033145542 is an apocalyptic number.

421033145542 is a deficient number, since it is larger than the sum of its proper divisors (222432605354).

421033145542 is a wasteful number, since it uses less digits than its factorization.

421033145542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972010862.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 421033145542 its reverse (245541330124), we get a palindrome (666574475666).

The spelling of 421033145542 in words is "four hundred twenty-one billion, thirty-three million, one hundred forty-five thousand, five hundred forty-two".