321400224011142 has 24 divisors (see below), whose sum is σ = 696415778178120. Its totient is φ = 107125927056960.

The previous prime is 321400224011123. The next prime is 321400224011147. The reversal of 321400224011142 is 241110422004123.

321400224011142 is a `hidden beast` number, since 3 + 2 + 1 + 400 + 2 + 240 + 1 + 1 + 14 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321400224011147) 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, 623147292 + ... + 623662847.

It is an arithmetic number, because the mean of its divisors is an integer number (29017324090755).

Almost surely, 2^{321400224011142} is an apocalyptic number.

321400224011142 is an abundant number, since it is smaller than the sum of its proper divisors (375015554166978).

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

321400224011142 is a wasteful number, since it uses less digits than its factorization.

321400224011142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246824468 (or 1246824465 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 321400224011142 its reverse (241110422004123), we get a palindrome (562510646015265).

The spelling of 321400224011142 in words is "three hundred twenty-one trillion, four hundred billion, two hundred twenty-four million, eleven thousand, one hundred forty-two".