321143330240120 has 32 divisors (see below), whose sum is σ = 723699751277520. Its totient is φ = 128256930631680.

The previous prime is 321143330240119. The next prime is 321143330240137. The reversal of 321143330240120 is 21042033341123.

It is a super-2 number, since 2×321143330240120² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6262519802 + ... + 6262571081.

Almost surely, 2^{321143330240120} is an apocalyptic number.

It is an amenable number.

321143330240120 is an abundant number, since it is smaller than the sum of its proper divisors (402556421037400).

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

321143330240120 is a wasteful number, since it uses less digits than its factorization.

321143330240120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12525091535 (or 12525091531 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 321143330240120 its reverse (21042033341123), we get a palindrome (342185363581243).

The spelling of 321143330240120 in words is "three hundred twenty-one trillion, one hundred forty-three billion, three hundred thirty million, two hundred forty thousand, one hundred twenty".