212340131231140 has 48 divisors (see below), whose sum is σ = 486478468897344. Its totient is φ = 77210381763200.

The previous prime is 212340131231113. The next prime is 212340131231143. The reversal of 212340131231140 is 41132131043212.

212340131231140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212340131231099 and 212340131231108.

It is not an unprimeable number, because it can be changed into a prime (212340131231143) 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, 22277134 + ... + 30347173.

It is an arithmetic number, because the mean of its divisors is an integer number (10134968102028).

Almost surely, 2^{212340131231140} is an apocalyptic number.

212340131231140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212340131231140 is an abundant number, since it is smaller than the sum of its proper divisors (274138337666204).

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

212340131231140 is a wasteful number, since it uses less digits than its factorization.

212340131231140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52642668 (or 52642666 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 212340131231140 its reverse (41132131043212), we get a palindrome (253472262274352).

The spelling of 212340131231140 in words is "two hundred twelve trillion, three hundred forty billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred forty".