340240343111312 has 320 divisors, whose sum is σ = 818158720204800. Its totient is φ = 133856313507840.

The previous prime is 340240343111311. The next prime is 340240343111321. The reversal of 340240343111312 is 213111343042043.

It is a super-2 number, since 2×340240343111312² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340240343111311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41948010137 + ... + 41948018247.

It is an arithmetic number, because the mean of its divisors is an integer number (2556746000640).

Almost surely, 2^{340240343111312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340240343111312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409079360102400).

340240343111312 is an abundant number, since it is smaller than the sum of its proper divisors (477918377093488).

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

340240343111312 is a wasteful number, since it uses less digits than its factorization.

340240343111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11494 (or 11488 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 340240343111312 its reverse (213111343042043), we get a palindrome (553351686153355).

The spelling of 340240343111312 in words is "three hundred forty trillion, two hundred forty billion, three hundred forty-three million, one hundred eleven thousand, three hundred twelve".