312031303100 has 108 divisors (see below), whose sum is σ = 745879989792. Its totient is φ = 113218828800.

The previous prime is 312031303093. The next prime is 312031303109. The reversal of 312031303100 is 1303130213.

It is a super-2 number, since 2×312031303100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031303109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5574452 + ... + 5630148.

Almost surely, 2^312031303100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312031303100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372939994896).

312031303100 is an abundant number, since it is smaller than the sum of its proper divisors (433848686692).

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

312031303100 is a wasteful number, since it uses less digits than its factorization.

312031303100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56196 (or 56178 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 312031303100 its reverse (1303130213), we get a palindrome (313334433313).

The spelling of 312031303100 in words is "three hundred twelve billion, thirty-one million, three hundred three thousand, one hundred".