421401323204312 has 48 divisors (see below), whose sum is σ = 869327975974920. Its totient is φ = 191360628581760.

The previous prime is 421401323204243. The next prime is 421401323204347. The reversal of 421401323204312 is 213402323104124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209712518 + ... + 211712405.

Almost surely, 2^{421401323204312} is an apocalyptic number.

It is an amenable number.

421401323204312 is an abundant number, since it is smaller than the sum of its proper divisors (447926652770608).

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

421401323204312 is a wasteful number, since it uses less digits than its factorization.

421401323204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421425984 (or 421425969 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 421401323204312 its reverse (213402323104124), we get a palindrome (634803646308436).

The spelling of 421401323204312 in words is "four hundred twenty-one trillion, four hundred one billion, three hundred twenty-three million, two hundred four thousand, three hundred twelve".