20140354312 has 64 divisors (see below), whose sum is σ = 43187760000. Its totient is φ = 8728280064.

The previous prime is 20140354303. The next prime is 20140354313. The reversal of 20140354312 is 21345304102.

It is not an unprimeable number, because it can be changed into a prime (20140354313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178189 + ... + 268387.

It is an arithmetic number, because the mean of its divisors is an integer number (674808750).

Almost surely, 2^20140354312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20140354312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21593880000).

20140354312 is an abundant number, since it is smaller than the sum of its proper divisors (23047405688).

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

20140354312 is a wasteful number, since it uses less digits than its factorization.

20140354312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90350 (or 90346 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20140354312 its reverse (21345304102), we get a palindrome (41485658414).

The spelling of 20140354312 in words is "twenty billion, one hundred forty million, three hundred fifty-four thousand, three hundred twelve".