20111244312 has 16 divisors (see below), whose sum is σ = 50278110840. Its totient is φ = 6703748096.

The previous prime is 20111244311. The next prime is 20111244313. The reversal of 20111244312 is 21344211102.

It is an interprime number because it is at equal distance from previous prime (20111244311) and next prime (20111244313).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111244311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418984233 + ... + 418984280.

Almost surely, 2^20111244312 is an apocalyptic number.

It is an amenable number.

20111244312 is an abundant number, since it is smaller than the sum of its proper divisors (30166866528).

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

20111244312 is a wasteful number, since it uses less digits than its factorization.

20111244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837968522 (or 837968518 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20111244312 its reverse (21344211102), we get a palindrome (41455455414).

The spelling of 20111244312 in words is "twenty billion, one hundred eleven million, two hundred forty-four thousand, three hundred twelve".