20112334140 has 48 divisors (see below), whose sum is σ = 56861296128. Its totient is φ = 5311216704.

The previous prime is 20112334129. The next prime is 20112334169. The reversal of 20112334140 is 4143321102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621032 + ... + 1633391.

It is an arithmetic number, because the mean of its divisors is an integer number (1184610336).

Almost surely, 2^20112334140 is an apocalyptic number.

20112334140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112334140 is an abundant number, since it is smaller than the sum of its proper divisors (36748961988).

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

20112334140 is a wasteful number, since it uses less digits than its factorization.

20112334140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254538 (or 3254536 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20112334140 its reverse (4143321102), we get a palindrome (24255655242).

The spelling of 20112334140 in words is "twenty billion, one hundred twelve million, three hundred thirty-four thousand, one hundred forty".