20010003312 has 160 divisors (see below), whose sum is σ = 58421260800. Its totient is φ = 5855579136.

The previous prime is 20010003269. The next prime is 20010003359. The reversal of 20010003312 is 21330001002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2565114 + ... + 2572902.

It is an arithmetic number, because the mean of its divisors is an integer number (365132880).

Almost surely, 2^20010003312 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 20010003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29210630400).

20010003312 is an abundant number, since it is smaller than the sum of its proper divisors (38411257488).

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

20010003312 is a wasteful number, since it uses less digits than its factorization.

20010003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015 (or 8009 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20010003312 its reverse (21330001002), we get a palindrome (41340004314).

The spelling of 20010003312 in words is "twenty billion, ten million, three thousand, three hundred twelve".