321310442042000 has 80 divisors (see below), whose sum is σ = 776942097884784. Its totient is φ = 128521952000000.

The previous prime is 321310442041957. The next prime is 321310442042041. The reversal of 321310442042000 is 240244013123.

It can be written as a sum of positive squares in 8 ways, for example, as 144621693567376 + 176688748474624 = 12025876^2 + 13292432^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×321310442042000² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116681000 + ... + 119403000.

Almost surely, 2^{321310442042000} is an apocalyptic number.

It is an amenable number.

321310442042000 is an abundant number, since it is smaller than the sum of its proper divisors (455631655842784).

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

321310442042000 is a wasteful number, since it uses less digits than its factorization.

321310442042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781045 (or 2781029 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 321310442042000 its reverse (240244013123), we get a palindrome (321550686055123).

The spelling of 321310442042000 in words is "three hundred twenty-one trillion, three hundred ten billion, four hundred forty-two million, forty-two thousand".