421321212110312 has 8 divisors (see below), whose sum is σ = 789977272706850. Its totient is φ = 210660606055152.

The previous prime is 421321212110291. The next prime is 421321212110317. The reversal of 421321212110312 is 213011212123124.

It can be written as a sum of positive squares in only one way, i.e., 242742195794596 + 178579016315716 = 15580186^2 + 13363346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (421321212110317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26332575756887 + ... + 26332575756902.

Almost surely, 2^{421321212110312} is an apocalyptic number.

It is an amenable number.

421321212110312 is a deficient number, since it is larger than the sum of its proper divisors (368656060596538).

421321212110312 is a wasteful number, since it uses less digits than its factorization.

421321212110312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52665151513795 (or 52665151513791 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 421321212110312 its reverse (213011212123124), we get a palindrome (634332424233436).

The spelling of 421321212110312 in words is "four hundred twenty-one trillion, three hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, three hundred twelve".