421134110442 has 16 divisors (see below), whose sum is σ = 935853578880. Its totient is φ = 140378036796.

The previous prime is 421134110437. The next prime is 421134110443. The reversal of 421134110442 is 244011431124.

421134110442 is a `hidden beast` number, since 4 + 211 + 3 + 4 + 1 + 1 + 0 + 442 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (421134110443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899389858 + ... + 3899389965.

It is an arithmetic number, because the mean of its divisors is an integer number (58490848680).

Almost surely, 2^421134110442 is an apocalyptic number.

421134110442 is an abundant number, since it is smaller than the sum of its proper divisors (514719468438).

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

421134110442 is a wasteful number, since it uses less digits than its factorization.

421134110442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798779834 (or 7798779828 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 421134110442 its reverse (244011431124), we get a palindrome (665145541566).

The spelling of 421134110442 in words is "four hundred twenty-one billion, one hundred thirty-four million, one hundred ten thousand, four hundred forty-two".