421321120042 has 32 divisors (see below), whose sum is σ = 645214464000. Its totient is φ = 206288782128.

The previous prime is 421321120037. The next prime is 421321120127. The reversal of 421321120042 is 240021123124.

It is a super-2 number, since 2×421321120042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421321119995 and 421321120022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32606059 + ... + 32618977.

It is an arithmetic number, because the mean of its divisors is an integer number (20162952000).

Almost surely, 2^421321120042 is an apocalyptic number.

421321120042 is a deficient number, since it is larger than the sum of its proper divisors (223893343958).

421321120042 is a wasteful number, since it uses less digits than its factorization.

421321120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14410.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 421321120042 its reverse (240021123124), we get a palindrome (661342243166).

The spelling of 421321120042 in words is "four hundred twenty-one billion, three hundred twenty-one million, one hundred twenty thousand, forty-two".