20121112302 has 16 divisors (see below), whose sum is σ = 41329852752. Its totient is φ = 6525766080.

The previous prime is 20121112279. The next prime is 20121112327. The reversal of 20121112302 is 20321112102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45317599 + ... + 45318042.

It is an arithmetic number, because the mean of its divisors is an integer number (2583115797).

Almost surely, 2^20121112302 is an apocalyptic number.

20121112302 is an abundant number, since it is smaller than the sum of its proper divisors (21208740450).

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

20121112302 is a wasteful number, since it uses less digits than its factorization.

20121112302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90635683.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20121112302 its reverse (20321112102), we get a palindrome (40442224404).

The spelling of 20121112302 in words is "twenty billion, one hundred twenty-one million, one hundred twelve thousand, three hundred two".