321140320012 has 48 divisors (see below), whose sum is σ = 584032458240. Its totient is φ = 154402329600.

The previous prime is 321140320009. The next prime is 321140320043. The reversal of 321140320012 is 210023041123.

It is a happy number.

It is a super-2 number, since 2×321140320012² (a number of 24 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, 3367288 + ... + 3461344.

It is an arithmetic number, because the mean of its divisors is an integer number (12167342880).

Almost surely, 2^321140320012 is an apocalyptic number.

It is an amenable number.

321140320012 is a deficient number, since it is larger than the sum of its proper divisors (262892138228).

321140320012 is a wasteful number, since it uses less digits than its factorization.

321140320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94402 (or 94400 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 321140320012 its reverse (210023041123), we get a palindrome (531163361135).

The spelling of 321140320012 in words is "three hundred twenty-one billion, one hundred forty million, three hundred twenty thousand, twelve".