421312143342042 has 24 divisors (see below), whose sum is σ = 915473648658816. Its totient is φ = 140032662434376.

The previous prime is 421312143342031. The next prime is 421312143342049. The reversal of 421312143342042 is 240243341213124.

421312143342042 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 12 + 1 + 433 + 4 + 204 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 421312143341988 and 421312143342006.

It is not an unprimeable number, because it can be changed into a prime (421312143342049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33726550218 + ... + 33726562709.

It is an arithmetic number, because the mean of its divisors is an integer number (38144735360784).

Almost surely, 2^{421312143342042} is an apocalyptic number.

421312143342042 is an abundant number, since it is smaller than the sum of its proper divisors (494161505316774).

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

421312143342042 is a wasteful number, since it uses less digits than its factorization.

421312143342042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67453113282 (or 67453113279 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 421312143342042 its reverse (240243341213124), we get a palindrome (661555484555166).

The spelling of 421312143342042 in words is "four hundred twenty-one trillion, three hundred twelve billion, one hundred forty-three million, three hundred forty-two thousand, forty-two".