1240949265343 has 8 divisors (see below), whose sum is σ = 1241802372096. Its totient is φ = 1240096455000.

The previous prime is 1240949265341. The next prime is 1240949265349. The reversal of 1240949265343 is 3435629490421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240949265343 - 2¹ = 1240949265341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240949265341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8651298 + ... + 8793568.

It is an arithmetic number, because the mean of its divisors is an integer number (155225296512).

Almost surely, 2^{1240949265343} is an apocalyptic number.

1240949265343 is a deficient number, since it is larger than the sum of its proper divisors (853106753).

1240949265343 is a wasteful number, since it uses less digits than its factorization.

1240949265343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148205.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 1240949265343 in words is "one trillion, two hundred forty billion, nine hundred forty-nine million, two hundred sixty-five thousand, three hundred forty-three".