312020323100 has 18 divisors (see below), whose sum is σ = 677084101344. Its totient is φ = 124808129200.

The previous prime is 312020323079. The next prime is 312020323141. The reversal of 312020323100 is 1323020213.

It is a super-2 number, since 2×312020323100² (a number of 24 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 5 ways as a sum of consecutive naturals, for example, 1560101516 + ... + 1560101715.

It is an arithmetic number, because the mean of its divisors is an integer number (37615783408).

Almost surely, 2^312020323100 is an apocalyptic number.

It is an amenable number.

312020323100 is an abundant number, since it is smaller than the sum of its proper divisors (365063778244).

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

312020323100 is a wasteful number, since it uses less digits than its factorization.

312020323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120203245 (or 3120203238 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 312020323100 its reverse (1323020213), we get a palindrome (313343343313).

The spelling of 312020323100 in words is "three hundred twelve billion, twenty million, three hundred twenty-three thousand, one hundred".