20001843312 has 160 divisors (see below), whose sum is σ = 58892230656. Its totient is φ = 5794579200.

The previous prime is 20001843299. The next prime is 20001843359. The reversal of 20001843312 is 21334810002.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1351183 + ... + 1365905.

Almost surely, 2^20001843312 is an apocalyptic number.

20001843312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001843312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29446115328).

20001843312 is an abundant number, since it is smaller than the sum of its proper divisors (38890387344).

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

20001843312 is a wasteful number, since it uses less digits than its factorization.

20001843312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14859 (or 14853 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 20001843312 in words is "twenty billion, one million, eight hundred forty-three thousand, three hundred twelve".