2043313212340 has 24 divisors (see below), whose sum is σ = 4290998531400. Its totient is φ = 817317516288.

The previous prime is 2043313212337. The next prime is 2043313212341. The reversal of 2043313212340 is 432123133402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1126981820836 + 916331391504 = 1061594^2 + 957252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2043313212299 and 2043313212308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043313212341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975464 + ... + 2826496.

It is an arithmetic number, because the mean of its divisors is an integer number (178791605475).

Almost surely, 2^{2043313212340} is an apocalyptic number.

2043313212340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043313212340 is an abundant number, since it is smaller than the sum of its proper divisors (2247685319060).

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

2043313212340 is a wasteful number, since it uses less digits than its factorization.

2043313212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971091 (or 971089 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 2043313212340 its reverse (432123133402), we get a palindrome (2475436345742).

The spelling of 2043313212340 in words is "two trillion, forty-three billion, three hundred thirteen million, two hundred twelve thousand, three hundred forty".