20020030321312 has 48 divisors (see below), whose sum is σ = 46262502518400. Its totient is φ = 8348120748288.

The previous prime is 20020030321279. The next prime is 20020030321331. The reversal of 20020030321312 is 21312303002002.

It is a super-2 number, since 2×20020030321312² (a number of 27 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 20020030321312.

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, 1207763812 + ... + 1207780387.

It is an arithmetic number, because the mean of its divisors is an integer number (963802135800).

Almost surely, 2^{20020030321312} is an apocalyptic number.

It is an amenable number.

20020030321312 is an abundant number, since it is smaller than the sum of its proper divisors (26242472197088).

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

20020030321312 is a wasteful number, since it uses less digits than its factorization.

20020030321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415544253 (or 2415544245 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20020030321312 its reverse (21312303002002), we get a palindrome (41332333323314).

The spelling of 20020030321312 in words is "twenty trillion, twenty billion, thirty million, three hundred twenty-one thousand, three hundred twelve".