20010103312 has 10 divisors (see below), whose sum is σ = 38769575198. Its totient is φ = 10005051648.

The previous prime is 20010103291. The next prime is 20010103319. The reversal of 20010103312 is 21330101002.

It can be written as a sum of positive squares in only one way, i.e., 12061310976 + 7948792336 = 109824^2 + 89156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20010103292 and 20010103301.

It is not an unprimeable number, because it can be changed into a prime (20010103319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625315713 + ... + 625315744.

Almost surely, 2^20010103312 is an apocalyptic number.

It is an amenable number.

20010103312 is a deficient number, since it is larger than the sum of its proper divisors (18759471886).

20010103312 is a wasteful number, since it uses less digits than its factorization.

20010103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250631465 (or 1250631459 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20010103312 its reverse (21330101002), we get a palindrome (41340204314).

The spelling of 20010103312 in words is "twenty billion, ten million, one hundred three thousand, three hundred twelve".