421243140033210 has 256 divisors, whose sum is σ = 1123266963456000. Its totient is φ = 100248430464000.

The previous prime is 421243140033151. The next prime is 421243140033253. The reversal of 421243140033210 is 12330041342124.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7955312235 + ... + 7955365185.

It is an arithmetic number, because the mean of its divisors is an integer number (4387761576000).

Almost surely, 2^{421243140033210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421243140033210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561633481728000).

421243140033210 is an abundant number, since it is smaller than the sum of its proper divisors (702023823422790).

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

421243140033210 is a wasteful number, since it uses less digits than its factorization.

421243140033210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54797.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 421243140033210 its reverse (12330041342124), we get a palindrome (433573181375334).

The spelling of 421243140033210 in words is "four hundred twenty-one trillion, two hundred forty-three billion, one hundred forty million, thirty-three thousand, two hundred ten".