20121013302 has 128 divisors (see below), whose sum is σ = 45600952320. Its totient is φ = 5877519360.

The previous prime is 20121013279. The next prime is 20121013313. The reversal of 20121013302 is 20331012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39530224 + ... + 39530732.

It is an arithmetic number, because the mean of its divisors is an integer number (356257440).

Almost surely, 2^20121013302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20121013302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22800476160).

20121013302 is an abundant number, since it is smaller than the sum of its proper divisors (25479939018).

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

20121013302 is a wasteful number, since it uses less digits than its factorization.

20121013302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

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

Adding to 20121013302 its reverse (20331012102), we get a palindrome (40452025404).

The spelling of 20121013302 in words is "twenty billion, one hundred twenty-one million, thirteen thousand, three hundred two".