1243541683292 has 12 divisors (see below), whose sum is σ = 2176221190920. Its totient is φ = 621764200176.

The previous prime is 1243541683259. The next prime is 1243541683309. The reversal of 1243541683292 is 2923861453421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243541683292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226483 + ... + 1997834.

It is an arithmetic number, because the mean of its divisors is an integer number (181351765910).

Almost surely, 2^{1243541683292} is an apocalyptic number.

It is an amenable number.

1243541683292 is a deficient number, since it is larger than the sum of its proper divisors (932679507628).

1243541683292 is a wasteful number, since it uses less digits than its factorization.

1243541683292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320740 (or 3320738 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The spelling of 1243541683292 in words is "one trillion, two hundred forty-three billion, five hundred forty-one million, six hundred eighty-three thousand, two hundred ninety-two".