20140223312 has 40 divisors (see below), whose sum is σ = 42804364512. Its totient is φ = 9104054400.

The previous prime is 20140223297. The next prime is 20140223329. The reversal of 20140223312 is 21332204102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284258 + ... + 347969.

Almost surely, 2^20140223312 is an apocalyptic number.

20140223312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20140223312 is an abundant number, since it is smaller than the sum of its proper divisors (22664141200).

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

20140223312 is a wasteful number, since it uses less digits than its factorization.

20140223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632427 (or 632421 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20140223312 its reverse (21332204102), we get a palindrome (41472427414).

The spelling of 20140223312 in words is "twenty billion, one hundred forty million, two hundred twenty-three thousand, three hundred twelve".