1211242103343 has 6 divisors (see below), whose sum is σ = 1749571927064. Its totient is φ = 807494735556.

The previous prime is 1211242103327. The next prime is 1211242103369. The reversal of 1211242103343 is 3433012421121.

1211242103343 is a `hidden beast` number, since 1 + 2 + 112 + 4 + 210 + 334 + 3 = 666.

It is not a de Polignac number, because 1211242103343 - 2⁴ = 1211242103327 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 (1211202103343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67291227955 + ... + 67291227972.

Almost surely, 2^{1211242103343} is an apocalyptic number.

1211242103343 is a deficient number, since it is larger than the sum of its proper divisors (538329823721).

1211242103343 is a wasteful number, since it uses less digits than its factorization.

1211242103343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134582455933 (or 134582455930 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1211242103343 its reverse (3433012421121), we get a palindrome (4644254524464).

The spelling of 1211242103343 in words is "one trillion, two hundred eleven billion, two hundred forty-two million, one hundred three thousand, three hundred forty-three".