321012332243142 has 32 divisors (see below), whose sum is σ = 642160193735808. Its totient is φ = 106981524926976.

The previous prime is 321012332243081. The next prime is 321012332243143. The reversal of 321012332243142 is 241342233210123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012332243143) 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 15 ways as a sum of consecutive naturals, for example, 555593133 + ... + 556170615.

It is an arithmetic number, because the mean of its divisors is an integer number (20067506054244).

Almost surely, 2^{321012332243142} is an apocalyptic number.

321012332243142 is an abundant number, since it is smaller than the sum of its proper divisors (321147861492666).

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

321012332243142 is a wasteful number, since it uses less digits than its factorization.

321012332243142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596884.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 321012332243142 its reverse (241342233210123), we get a palindrome (562354565453265).

The spelling of 321012332243142 in words is "three hundred twenty-one trillion, twelve billion, three hundred thirty-two million, two hundred forty-three thousand, one hundred forty-two".