312101000020 has 12 divisors (see below), whose sum is σ = 655412100084. Its totient is φ = 124840400000.

The previous prime is 312101000017. The next prime is 312101000041. The reversal of 312101000020 is 20000101213.

It can be written as a sum of positive squares in 2 ways, for example, as 212841977104 + 99259022916 = 461348^2 + 315054^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 312100999970 and 312101000006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7802524981 + ... + 7802525020.

It is an arithmetic number, because the mean of its divisors is an integer number (54617675007).

Almost surely, 2^312101000020 is an apocalyptic number.

It is an amenable number.

312101000020 is an abundant number, since it is smaller than the sum of its proper divisors (343311100064).

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

312101000020 is a wasteful number, since it uses less digits than its factorization.

312101000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15605050010 (or 15605050008 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 312101000020 its reverse (20000101213), we get a palindrome (332101101233).

The spelling of 312101000020 in words is "three hundred twelve billion, one hundred one million, twenty", and thus it is an aban number.