1242355043115 has 32 divisors (see below), whose sum is σ = 2262500251200. Its totient is φ = 646428637440.

The previous prime is 1242355043113. The next prime is 1242355043141. The reversal of 1242355043115 is 5113405532421.

1242355043115 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 35 + 504 + 3 + 115 = 666.

It is not a de Polignac number, because 1242355043115 - 2¹ = 1242355043113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1242355043115.

It is not an unprimeable number, because it can be changed into a prime (1242355043113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112221660 + ... + 112232729.

It is an arithmetic number, because the mean of its divisors is an integer number (70703132850).

Almost surely, 2^{1242355043115} is an apocalyptic number.

1242355043115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242355043115 is a deficient number, since it is larger than the sum of its proper divisors (1020145208085).

1242355043115 is a wasteful number, since it uses less digits than its factorization.

1242355043115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224454444 (or 224454438 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 1242355043115 in words is "one trillion, two hundred forty-two billion, three hundred fifty-five million, forty-three thousand, one hundred fifteen".