421240101101430 has 128 divisors (see below), whose sum is σ = 1136095540070400. Its totient is φ = 99180287585280.

The previous prime is 421240101101383. The next prime is 421240101101527. The reversal of 421240101101430 is 34101101042124.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 421240101101430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 776521890 + ... + 777064170.

It is an arithmetic number, because the mean of its divisors is an integer number (8875746406800).

Almost surely, 2^{421240101101430} is an apocalyptic number.

421240101101430 is an abundant number, since it is smaller than the sum of its proper divisors (714855438968970).

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

421240101101430 is a wasteful number, since it uses less digits than its factorization.

421240101101430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628926.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 421240101101430 its reverse (34101101042124), we get a palindrome (455341202143554).

The spelling of 421240101101430 in words is "four hundred twenty-one trillion, two hundred forty billion, one hundred one million, one hundred one thousand, four hundred thirty".