421511344101 has 16 divisors (see below), whose sum is σ = 624527041600. Its totient is φ = 280977956784.

The previous prime is 421511344091. The next prime is 421511344103. The reversal of 421511344101 is 101443115124.

It is a happy number.

421511344101 is a `hidden beast` number, since 4 + 2 + 1 + 511 + 3 + 44 + 101 = 666.

It is not a de Polignac number, because 421511344101 - 2⁷ = 421511343973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421511344103) 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 15 ways as a sum of consecutive naturals, for example, 559846 + ... + 1075383.

It is an arithmetic number, because the mean of its divisors is an integer number (39032940100).

Almost surely, 2^421511344101 is an apocalyptic number.

It is an amenable number.

421511344101 is a deficient number, since it is larger than the sum of its proper divisors (203015697499).

421511344101 is a wasteful number, since it uses less digits than its factorization.

421511344101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644785 (or 1644779 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 421511344101 its reverse (101443115124), we get a palindrome (522954459225).

The spelling of 421511344101 in words is "four hundred twenty-one billion, five hundred eleven million, three hundred forty-four thousand, one hundred one".