20302011312 has 160 divisors (see below), whose sum is σ = 60522840576. Its totient is φ = 5803776000.

The previous prime is 20302011283. The next prime is 20302011319. The reversal of 20302011312 is 21311020302.

It is a super-2 number, since 2×20302011312² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20302011291 and 20302011300.

It is not an unprimeable number, because it can be changed into a prime (20302011319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 875062 + ... + 897962.

Almost surely, 2^20302011312 is an apocalyptic number.

20302011312 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 20302011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30261420288).

20302011312 is an abundant number, since it is smaller than the sum of its proper divisors (40220829264).

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

20302011312 is a wasteful number, since it uses less digits than its factorization.

20302011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23019 (or 23013 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20302011312 its reverse (21311020302), we get a palindrome (41613031614).

The spelling of 20302011312 in words is "twenty billion, three hundred two million, eleven thousand, three hundred twelve".