321401420142 has 64 divisors (see below), whose sum is σ = 738241862400. Its totient is φ = 92256468480.

The previous prime is 321401420141. The next prime is 321401420143. The reversal of 321401420142 is 241024104123.

It is an interprime number because it is at equal distance from previous prime (321401420141) and next prime (321401420143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321401420141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15660984 + ... + 15681492.

It is an arithmetic number, because the mean of its divisors is an integer number (11535029100).

Almost surely, 2^321401420142 is an apocalyptic number.

321401420142 is an abundant number, since it is smaller than the sum of its proper divisors (416840442258).

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

321401420142 is a wasteful number, since it uses less digits than its factorization.

321401420142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33041.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 321401420142 its reverse (241024104123), we get a palindrome (562425524265).

The spelling of 321401420142 in words is "three hundred twenty-one billion, four hundred one million, four hundred twenty thousand, one hundred forty-two".