321043250530312 has 8 divisors (see below), whose sum is σ = 601956094744350. Its totient is φ = 160521625265152.

The previous prime is 321043250530307. The next prime is 321043250530319. The reversal of 321043250530312 is 213035052340123.

It can be written as a sum of positive squares in only one way, i.e., 187347820500036 + 133695430030276 = 13687506^2 + 11562674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×321043250530312² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321043250530319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065203158137 + ... + 20065203158152.

Almost surely, 2^{321043250530312} is an apocalyptic number.

It is an amenable number.

321043250530312 is a deficient number, since it is larger than the sum of its proper divisors (280912844214038).

321043250530312 is a wasteful number, since it uses less digits than its factorization.

321043250530312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40130406316295 (or 40130406316291 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 321043250530312 in words is "three hundred twenty-one trillion, forty-three billion, two hundred fifty million, five hundred thirty thousand, three hundred twelve".