212831943136140 has 24 divisors (see below), whose sum is σ = 595929440781360. Its totient is φ = 56755184836288.

The previous prime is 212831943136103. The next prime is 212831943136151. The reversal of 212831943136140 is 41631349138212.

It is a super-3 number, since 3×212831943136140³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212831943136140.

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, 1773599526075 + ... + 1773599526194.

It is an arithmetic number, because the mean of its divisors is an integer number (24830393365890).

Almost surely, 2^{212831943136140} is an apocalyptic number.

212831943136140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212831943136140 is an abundant number, since it is smaller than the sum of its proper divisors (383097497645220).

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

212831943136140 is a wasteful number, since it uses less digits than its factorization.

212831943136140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547199052281 (or 3547199052279 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 212831943136140 in words is "two hundred twelve trillion, eight hundred thirty-one billion, nine hundred forty-three million, one hundred thirty-six thousand, one hundred forty".