243140451382312 has 64 divisors (see below), whose sum is σ = 521823064613760. Its totient is φ = 105129188524800.

The previous prime is 243140451382291. The next prime is 243140451382331. The reversal of 243140451382312 is 213283154041342.

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, 331480843 + ... + 332213530.

It is an arithmetic number, because the mean of its divisors is an integer number (8153485384590).

Almost surely, 2^{243140451382312} is an apocalyptic number.

243140451382312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243140451382312 is an abundant number, since it is smaller than the sum of its proper divisors (278682613231448).

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

243140451382312 is a wasteful number, since it uses less digits than its factorization.

243140451382312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663694594 (or 663694590 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 243140451382312 in words is "two hundred forty-three trillion, one hundred forty billion, four hundred fifty-one million, three hundred eighty-two thousand, three hundred twelve".