321020343111052 has 48 divisors (see below), whose sum is σ = 606294811960992. Its totient is φ = 147846170949120.

The previous prime is 321020343110981. The next prime is 321020343111067. The reversal of 321020343111052 is 250111343020123.

It is a super-2 number, since 2×321020343111052² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321020343111052.

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, 247857048 + ... + 249148864.

It is an arithmetic number, because the mean of its divisors is an integer number (12631141915854).

Almost surely, 2^{321020343111052} is an apocalyptic number.

It is an amenable number.

321020343111052 is a deficient number, since it is larger than the sum of its proper divisors (285274468849940).

321020343111052 is a wasteful number, since it uses less digits than its factorization.

321020343111052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302058 (or 1302056 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 321020343111052 its reverse (250111343020123), we get a palindrome (571131686131175).

The spelling of 321020343111052 in words is "three hundred twenty-one trillion, twenty billion, three hundred forty-three million, one hundred eleven thousand, fifty-two".