212140031340 has 24 divisors (see below), whose sum is σ = 593992087920. Its totient is φ = 56570675008.

The previous prime is 212140031293. The next prime is 212140031359. The reversal of 212140031340 is 43130041212.

212140031340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1767833535 + ... + 1767833654.

It is an arithmetic number, because the mean of its divisors is an integer number (24749670330).

Almost surely, 2^212140031340 is an apocalyptic number.

212140031340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212140031340 is an abundant number, since it is smaller than the sum of its proper divisors (381852056580).

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

212140031340 is a wasteful number, since it uses less digits than its factorization.

212140031340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535667201 (or 3535667199 counting only the distinct ones).

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

Adding to 212140031340 its reverse (43130041212), we get a palindrome (255270072552).

The spelling of 212140031340 in words is "two hundred twelve billion, one hundred forty million, thirty-one thousand, three hundred forty".