421301213524 has 24 divisors (see below), whose sum is σ = 737822832768. Its totient is φ = 210494756160.

The previous prime is 421301213507. The next prime is 421301213561. The reversal of 421301213524 is 425312103124.

It is a super-3 number, since 3×421301213524³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421301213492 and 421301213501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43940259 + ... + 43949845.

It is an arithmetic number, because the mean of its divisors is an integer number (30742618032).

Almost surely, 2^421301213524 is an apocalyptic number.

It is an amenable number.

421301213524 is a deficient number, since it is larger than the sum of its proper divisors (316521619244).

421301213524 is a wasteful number, since it uses less digits than its factorization.

421301213524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16575 (or 16573 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 421301213524 its reverse (425312103124), we get a palindrome (846613316648).

The spelling of 421301213524 in words is "four hundred twenty-one billion, three hundred one million, two hundred thirteen thousand, five hundred twenty-four".