321412010043400 has 48 divisors (see below), whose sum is σ = 748006334212500. Its totient is φ = 128440346234880.

The previous prime is 321412010043367. The next prime is 321412010043407. The reversal of 321412010043400 is 4340010214123.

It can be written as a sum of positive squares in 6 ways, for example, as 160935154184484 + 160476855858916 = 12686022^2 + 12667946^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (321412010043407) 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, 777654025 + ... + 778067224.

Almost surely, 2^{321412010043400} is an apocalyptic number.

It is an amenable number.

321412010043400 is an abundant number, since it is smaller than the sum of its proper divisors (426594324169100).

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

321412010043400 is a wasteful number, since it uses less digits than its factorization.

321412010043400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555722298 (or 1555722289 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 321412010043400 its reverse (4340010214123), we get a palindrome (325752020257523).

The spelling of 321412010043400 in words is "three hundred twenty-one trillion, four hundred twelve billion, ten million, forty-three thousand, four hundred".