421121301450 has 48 divisors (see below), whose sum is σ = 1044916859136. Its totient is φ = 112241376000.

The previous prime is 421121301427. The next prime is 421121301529. The reversal of 421121301450 is 54103121124.

It is a self number, because there is not a number n which added to its sum of digits gives 421121301450.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 426847 + ... + 1012146.

It is an arithmetic number, because the mean of its divisors is an integer number (21769101232).

Almost surely, 2^421121301450 is an apocalyptic number.

421121301450 is an abundant number, since it is smaller than the sum of its proper divisors (623795557686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421121301450 is a wasteful number, since it uses less digits than its factorization.

421121301450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440959 (or 1440954 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 421121301450 its reverse (54103121124), we get a palindrome (475224422574).

The spelling of 421121301450 in words is "four hundred twenty-one billion, one hundred twenty-one million, three hundred one thousand, four hundred fifty".